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Finding the Fourth Proportional to 126,061.20, 176,616.90 and 126,061.20

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Solution

The fourth proportional to 126,061.20, 176,616.90 and 126,061.20 is: 176,616.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,061.20 : 176,616.90 = 126,061.20 : x
  2. Step 2: Convert to fraction form
    126,061.20/176,616.90 = 126,061.20/x
  3. Step 3: Cross multiply
    126,061.20x = 176,616.90 × 126,061.20
  4. Step 4: Simplify right side
    126,061.20x = 22,264,538,354.28
  5. Step 5: Solve for x
    x = 22,264,538,354.28/126,061.20
  6. Step 6: Final answer
    x = 176,616.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.