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Finding the Fourth Proportional to 161,892.90, 242,766.45 and 73,100.70

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Solution

The fourth proportional to 161,892.90, 242,766.45 and 73,100.70 is: 109,618.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,892.90 : 242,766.45 = 73,100.70 : x
  2. Step 2: Convert to fraction form
    161,892.90/242,766.45 = 73,100.70/x
  3. Step 3: Cross multiply
    161,892.90x = 242,766.45 × 73,100.70
  4. Step 4: Simplify right side
    161,892.90x = 17,746,397,431.52
  5. Step 5: Solve for x
    x = 17,746,397,431.52/161,892.90
  6. Step 6: Final answer
    x = 109,618.13

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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.