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Finding the Fourth Proportional to 73,355.10, 110,032.65 and 68,397.90

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Solution

The fourth proportional to 73,355.10, 110,032.65 and 68,397.90 is: 102,596.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,355.10 : 110,032.65 = 68,397.90 : x
  2. Step 2: Convert to fraction form
    73,355.10/110,032.65 = 68,397.90/x
  3. Step 3: Cross multiply
    73,355.10x = 110,032.65 × 68,397.90
  4. Step 4: Simplify right side
    73,355.10x = 7,526,002,191.44
  5. Step 5: Solve for x
    x = 7,526,002,191.44/73,355.10
  6. Step 6: Final answer
    x = 102,596.85

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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.