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Finding the Fourth Proportional to 506,116.80, 759,175.20 and 132,139.80

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Solution

The fourth proportional to 506,116.80, 759,175.20 and 132,139.80 is: 198,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,116.80 : 759,175.20 = 132,139.80 : x
  2. Step 2: Convert to fraction form
    506,116.80/759,175.20 = 132,139.80/x
  3. Step 3: Cross multiply
    506,116.80x = 759,175.20 × 132,139.80
  4. Step 4: Simplify right side
    506,116.80x = 100,317,259,092.96
  5. Step 5: Solve for x
    x = 100,317,259,092.96/506,116.80
  6. Step 6: Final answer
    x = 198,209.70

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Similar ratio
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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.