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Finding the Fourth Proportional to 129,361,557,672.80, 194,042,336,509.20 and 129,361,557,672.80

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Solution

The fourth proportional to 129,361,557,672.80, 194,042,336,509.20 and 129,361,557,672.80 is: 194,042,336,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,361,557,672.80 : 194,042,336,509.20 = 129,361,557,672.80 : x
  2. Step 2: Convert to fraction form
    129,361,557,672.80/194,042,336,509.20 = 129,361,557,672.80/x
  3. Step 3: Cross multiply
    129,361,557,672.80x = 194,042,336,509.20 × 129,361,557,672.80
  4. Step 4: Simplify right side
    129,361,557,672.80x = 25,101,618,905,299,741,048,832
  5. Step 5: Solve for x
    x = 25,101,618,905,299,741,048,832/129,361,557,672.80
  6. Step 6: Final answer
    x = 194,042,336,509.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.