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Finding the Fourth Proportional to 127,957.46, 176,581.54 and 71,372.48

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Solution

The fourth proportional to 127,957.46, 176,581.54 and 71,372.48 is: 98,494.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,957.46 : 176,581.54 = 71,372.48 : x
  2. Step 2: Convert to fraction form
    127,957.46/176,581.54 = 71,372.48/x
  3. Step 3: Cross multiply
    127,957.46x = 176,581.54 × 71,372.48
  4. Step 4: Simplify right side
    127,957.46x = 12,603,062,432.02
  5. Step 5: Solve for x
    x = 12,603,062,432.02/127,957.46
  6. Step 6: Final answer
    x = 98,494.16

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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.