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Finding the Fourth Proportional to 78,909.66, 118,347.08 and 22,737.38

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Solution

The fourth proportional to 78,909.66, 118,347.08 and 22,737.38 is: 34,101.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,909.66 : 118,347.08 = 22,737.38 : x
  2. Step 2: Convert to fraction form
    78,909.66/118,347.08 = 22,737.38/x
  3. Step 3: Cross multiply
    78,909.66x = 118,347.08 × 22,737.38
  4. Step 4: Simplify right side
    78,909.66x = 2,690,901,824.43
  5. Step 5: Solve for x
    x = 2,690,901,824.43/78,909.66
  6. Step 6: Final answer
    x = 34,101.04

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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.