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Finding the Fourth Proportional to 127,436.18, 175,866.42 and 70,079.86

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Solution

The fourth proportional to 127,436.18, 175,866.42 and 70,079.86 is: 96,712.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,436.18 : 175,866.42 = 70,079.86 : x
  2. Step 2: Convert to fraction form
    127,436.18/175,866.42 = 70,079.86/x
  3. Step 3: Cross multiply
    127,436.18x = 175,866.42 × 70,079.86
  4. Step 4: Simplify right side
    127,436.18x = 12,324,694,092.30
  5. Step 5: Solve for x
    x = 12,324,694,092.30/127,436.18
  6. Step 6: Final answer
    x = 96,712.68

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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.