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Finding the Fourth Proportional to 381,632.37, 572,588.88 and 156,932.70

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Solution

The fourth proportional to 381,632.37, 572,588.88 and 156,932.70 is: 235,456.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,632.37 : 572,588.88 = 156,932.70 : x
  2. Step 2: Convert to fraction form
    381,632.37/572,588.88 = 156,932.70/x
  3. Step 3: Cross multiply
    381,632.37x = 572,588.88 × 156,932.70
  4. Step 4: Simplify right side
    381,632.37x = 89,857,918,928.38
  5. Step 5: Solve for x
    x = 89,857,918,928.38/381,632.37
  6. Step 6: Final answer
    x = 235,456.75

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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.