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Finding the Fourth Proportional to 438,760.82, 658,141.24 and 106,336.82

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Solution

The fourth proportional to 438,760.82, 658,141.24 and 106,336.82 is: 159,505.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,760.82 : 658,141.24 = 106,336.82 : x
  2. Step 2: Convert to fraction form
    438,760.82/658,141.24 = 106,336.82/x
  3. Step 3: Cross multiply
    438,760.82x = 658,141.24 × 106,336.82
  4. Step 4: Simplify right side
    438,760.82x = 69,984,646,572.46
  5. Step 5: Solve for x
    x = 69,984,646,572.46/438,760.82
  6. Step 6: Final answer
    x = 159,505.23

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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.