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Finding the Fourth Proportional to 237,991.92, 357,081.36 and 104,778.72

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Solution

The fourth proportional to 237,991.92, 357,081.36 and 104,778.72 is: 157,209.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,991.92 : 357,081.36 = 104,778.72 : x
  2. Step 2: Convert to fraction form
    237,991.92/357,081.36 = 104,778.72/x
  3. Step 3: Cross multiply
    237,991.92x = 357,081.36 × 104,778.72
  4. Step 4: Simplify right side
    237,991.92x = 37,414,527,836.66
  5. Step 5: Solve for x
    x = 37,414,527,836.66/237,991.92
  6. Step 6: Final answer
    x = 157,209.24

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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.