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Finding the Fourth Proportional to 127,118.84, 175,422.41 and 73,402.68

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Solution

The fourth proportional to 127,118.84, 175,422.41 and 73,402.68 is: 101,294.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,118.84 : 175,422.41 = 73,402.68 : x
  2. Step 2: Convert to fraction form
    127,118.84/175,422.41 = 73,402.68/x
  3. Step 3: Cross multiply
    127,118.84x = 175,422.41 × 73,402.68
  4. Step 4: Simplify right side
    127,118.84x = 12,876,475,209.57
  5. Step 5: Solve for x
    x = 12,876,475,209.57/127,118.84
  6. Step 6: Final answer
    x = 101,294.78

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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.