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Finding the Fourth Proportional to 367,819.68, 551,660.42 and 115,062.32

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Solution

The fourth proportional to 367,819.68, 551,660.42 and 115,062.32 is: 172,571.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,819.68 : 551,660.42 = 115,062.32 : x
  2. Step 2: Convert to fraction form
    367,819.68/551,660.42 = 115,062.32/x
  3. Step 3: Cross multiply
    367,819.68x = 551,660.42 × 115,062.32
  4. Step 4: Simplify right side
    367,819.68x = 63,475,329,444.18
  5. Step 5: Solve for x
    x = 63,475,329,444.18/367,819.68
  6. Step 6: Final answer
    x = 172,571.87

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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.