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Finding the Fourth Proportional to 127,503.59, 175,949.41 and 70,139.28

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Solution

The fourth proportional to 127,503.59, 175,949.41 and 70,139.28 is: 96,789.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,503.59 : 175,949.41 = 70,139.28 : x
  2. Step 2: Convert to fraction form
    127,503.59/175,949.41 = 70,139.28/x
  3. Step 3: Cross multiply
    127,503.59x = 175,949.41 × 70,139.28
  4. Step 4: Simplify right side
    127,503.59x = 12,340,964,493.95
  5. Step 5: Solve for x
    x = 12,340,964,493.95/127,503.59
  6. Step 6: Final answer
    x = 96,789.15

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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.