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Finding the Fourth Proportional to 129,866.94, 194,652.90 and 54,940.32

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Solution

The fourth proportional to 129,866.94, 194,652.90 and 54,940.32 is: 82,348.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,866.94 : 194,652.90 = 54,940.32 : x
  2. Step 2: Convert to fraction form
    129,866.94/194,652.90 = 54,940.32/x
  3. Step 3: Cross multiply
    129,866.94x = 194,652.90 × 54,940.32
  4. Step 4: Simplify right side
    129,866.94x = 10,694,292,614.93
  5. Step 5: Solve for x
    x = 10,694,292,614.93/129,866.94
  6. Step 6: Final answer
    x = 82,348.08

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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.