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Finding the Fourth Proportional to 127,702.56, 176,229.84 and 70,340.52

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Solution

The fourth proportional to 127,702.56, 176,229.84 and 70,340.52 is: 97,070.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,702.56 : 176,229.84 = 70,340.52 : x
  2. Step 2: Convert to fraction form
    127,702.56/176,229.84 = 70,340.52/x
  3. Step 3: Cross multiply
    127,702.56x = 176,229.84 × 70,340.52
  4. Step 4: Simplify right side
    127,702.56x = 12,396,098,585.12
  5. Step 5: Solve for x
    x = 12,396,098,585.12/127,702.56
  6. Step 6: Final answer
    x = 97,070.09

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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.