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Finding the Fourth Proportional to 102,760.62, 153,753.34 and 60,663.60

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Solution

The fourth proportional to 102,760.62, 153,753.34 and 60,663.60 is: 90,766.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,760.62 : 153,753.34 = 60,663.60 : x
  2. Step 2: Convert to fraction form
    102,760.62/153,753.34 = 60,663.60/x
  3. Step 3: Cross multiply
    102,760.62x = 153,753.34 × 60,663.60
  4. Step 4: Simplify right side
    102,760.62x = 9,327,231,078.51
  5. Step 5: Solve for x
    x = 9,327,231,078.51/102,760.62
  6. Step 6: Final answer
    x = 90,766.59

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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.