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Finding the Fourth Proportional to 109,776.57, 151,489.69 and 62,028.89

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Solution

The fourth proportional to 109,776.57, 151,489.69 and 62,028.89 is: 85,598.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,776.57 : 151,489.69 = 62,028.89 : x
  2. Step 2: Convert to fraction form
    109,776.57/151,489.69 = 62,028.89/x
  3. Step 3: Cross multiply
    109,776.57x = 151,489.69 × 62,028.89
  4. Step 4: Simplify right side
    109,776.57x = 9,396,737,321.62
  5. Step 5: Solve for x
    x = 9,396,737,321.62/109,776.57
  6. Step 6: Final answer
    x = 85,598.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.