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Finding the Fourth Proportional to 127,960.62, 176,593.68 and 71,371.86

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Solution

The fourth proportional to 127,960.62, 176,593.68 and 71,371.86 is: 98,497.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,960.62 : 176,593.68 = 71,371.86 : x
  2. Step 2: Convert to fraction form
    127,960.62/176,593.68 = 71,371.86/x
  3. Step 3: Cross multiply
    127,960.62x = 176,593.68 × 71,371.86
  4. Step 4: Simplify right side
    127,960.62x = 12,603,819,405.84
  5. Step 5: Solve for x
    x = 12,603,819,405.84/127,960.62
  6. Step 6: Final answer
    x = 98,497.64

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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.