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Finding the Fourth Proportional to 127,960.59, 176,589.42 and 71,370.75

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Solution

The fourth proportional to 127,960.59, 176,589.42 and 71,370.75 is: 98,493.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,960.59 : 176,589.42 = 71,370.75 : x
  2. Step 2: Convert to fraction form
    127,960.59/176,589.42 = 71,370.75/x
  3. Step 3: Cross multiply
    127,960.59x = 176,589.42 × 71,370.75
  4. Step 4: Simplify right side
    127,960.59x = 12,603,319,347.47
  5. Step 5: Solve for x
    x = 12,603,319,347.47/127,960.59
  6. Step 6: Final answer
    x = 98,493.76

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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.