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Finding the Fourth Proportional to 71,802.86, 107,704.32 and 34,354.12

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Solution

The fourth proportional to 71,802.86, 107,704.32 and 34,354.12 is: 51,531.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,802.86 : 107,704.32 = 34,354.12 : x
  2. Step 2: Convert to fraction form
    71,802.86/107,704.32 = 34,354.12/x
  3. Step 3: Cross multiply
    71,802.86x = 107,704.32 × 34,354.12
  4. Step 4: Simplify right side
    71,802.86x = 3,700,087,133.80
  5. Step 5: Solve for x
    x = 3,700,087,133.80/71,802.86
  6. Step 6: Final answer
    x = 51,531.19

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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.