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Finding the Fourth Proportional to 261,251.20, 392,051.34 and 95,039.20

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Solution

The fourth proportional to 261,251.20, 392,051.34 and 95,039.20 is: 142,622.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,251.20 : 392,051.34 = 95,039.20 : x
  2. Step 2: Convert to fraction form
    261,251.20/392,051.34 = 95,039.20/x
  3. Step 3: Cross multiply
    261,251.20x = 392,051.34 × 95,039.20
  4. Step 4: Simplify right side
    261,251.20x = 37,260,245,712.53
  5. Step 5: Solve for x
    x = 37,260,245,712.53/261,251.20
  6. Step 6: Final answer
    x = 142,622.29

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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.