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Finding the Fourth Proportional to 169,711.61, 234,244.10 and 98,081.28

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Solution

The fourth proportional to 169,711.61, 234,244.10 and 98,081.28 is: 135,376.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,711.61 : 234,244.10 = 98,081.28 : x
  2. Step 2: Convert to fraction form
    169,711.61/234,244.10 = 98,081.28/x
  3. Step 3: Cross multiply
    169,711.61x = 234,244.10 × 98,081.28
  4. Step 4: Simplify right side
    169,711.61x = 22,974,961,405.65
  5. Step 5: Solve for x
    x = 22,974,961,405.65/169,711.61
  6. Step 6: Final answer
    x = 135,376.49

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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.