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Finding the Fourth Proportional to 81,598.73, 122,160.33 and 60,631.71

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Solution

The fourth proportional to 81,598.73, 122,160.33 and 60,631.71 is: 90,770.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,598.73 : 122,160.33 = 60,631.71 : x
  2. Step 2: Convert to fraction form
    81,598.73/122,160.33 = 60,631.71/x
  3. Step 3: Cross multiply
    81,598.73x = 122,160.33 × 60,631.71
  4. Step 4: Simplify right side
    81,598.73x = 7,406,789,702.06
  5. Step 5: Solve for x
    x = 7,406,789,702.06/81,598.73
  6. Step 6: Final answer
    x = 90,770.90

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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.