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Finding the Fourth Proportional to 102,251.97, 153,398.69 and 43,087.61

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Solution

The fourth proportional to 102,251.97, 153,398.69 and 43,087.61 is: 64,640.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,251.97 : 153,398.69 = 43,087.61 : x
  2. Step 2: Convert to fraction form
    102,251.97/153,398.69 = 43,087.61/x
  3. Step 3: Cross multiply
    102,251.97x = 153,398.69 × 43,087.61
  4. Step 4: Simplify right side
    102,251.97x = 6,609,582,929.23
  5. Step 5: Solve for x
    x = 6,609,582,929.23/102,251.97
  6. Step 6: Final answer
    x = 64,640.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.