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Finding the Fourth Proportional to 126,874.08, 175,073.40 and 75,876.68

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Solution

The fourth proportional to 126,874.08, 175,073.40 and 75,876.68 is: 104,702.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,874.08 : 175,073.40 = 75,876.68 : x
  2. Step 2: Convert to fraction form
    126,874.08/175,073.40 = 75,876.68/x
  3. Step 3: Cross multiply
    126,874.08x = 175,073.40 × 75,876.68
  4. Step 4: Simplify right side
    126,874.08x = 13,283,988,786.00
  5. Step 5: Solve for x
    x = 13,283,988,786.00/126,874.08
  6. Step 6: Final answer
    x = 104,702.15

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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.