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Finding the Fourth Proportional to 96,561.20, 129,942.90 and 96,561.20

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Solution

The fourth proportional to 96,561.20, 129,942.90 and 96,561.20 is: 129,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,561.20 : 129,942.90 = 96,561.20 : x
  2. Step 2: Convert to fraction form
    96,561.20/129,942.90 = 96,561.20/x
  3. Step 3: Cross multiply
    96,561.20x = 129,942.90 × 96,561.20
  4. Step 4: Simplify right side
    96,561.20x = 12,547,442,355.48
  5. Step 5: Solve for x
    x = 12,547,442,355.48/96,561.20
  6. Step 6: Final answer
    x = 129,942.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.