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Finding the Fourth Proportional to 153,953.60, 231,124.80 and 82,932.80

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Solution

The fourth proportional to 153,953.60, 231,124.80 and 82,932.80 is: 124,503.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,953.60 : 231,124.80 = 82,932.80 : x
  2. Step 2: Convert to fraction form
    153,953.60/231,124.80 = 82,932.80/x
  3. Step 3: Cross multiply
    153,953.60x = 231,124.80 × 82,932.80
  4. Step 4: Simplify right side
    153,953.60x = 19,167,826,813.44
  5. Step 5: Solve for x
    x = 19,167,826,813.44/153,953.60
  6. Step 6: Final answer
    x = 124,503.92

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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.