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Finding the Fourth Proportional to 127,503.97, 175,834.70 and 81,578.14

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Solution

The fourth proportional to 127,503.97, 175,834.70 and 81,578.14 is: 112,500.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,503.97 : 175,834.70 = 81,578.14 : x
  2. Step 2: Convert to fraction form
    127,503.97/175,834.70 = 81,578.14/x
  3. Step 3: Cross multiply
    127,503.97x = 175,834.70 × 81,578.14
  4. Step 4: Simplify right side
    127,503.97x = 14,344,266,894.28
  5. Step 5: Solve for x
    x = 14,344,266,894.28/127,503.97
  6. Step 6: Final answer
    x = 112,500.56

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1.5x scale

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.