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Finding the Fourth Proportional to 127,652.38, 176,160.20 and 71,077.12

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Solution

The fourth proportional to 127,652.38, 176,160.20 and 71,077.12 is: 98,086.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,652.38 : 176,160.20 = 71,077.12 : x
  2. Step 2: Convert to fraction form
    127,652.38/176,160.20 = 71,077.12/x
  3. Step 3: Cross multiply
    127,652.38x = 176,160.20 × 71,077.12
  4. Step 4: Simplify right side
    127,652.38x = 12,520,959,674.62
  5. Step 5: Solve for x
    x = 12,520,959,674.62/127,652.38
  6. Step 6: Final answer
    x = 98,086.38

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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.