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Finding the Fourth Proportional to 237,081.78, 355,248.12 and 192,490.68

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Solution

The fourth proportional to 237,081.78, 355,248.12 and 192,490.68 is: 288,431.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,081.78 : 355,248.12 = 192,490.68 : x
  2. Step 2: Convert to fraction form
    237,081.78/355,248.12 = 192,490.68/x
  3. Step 3: Cross multiply
    237,081.78x = 355,248.12 × 192,490.68
  4. Step 4: Simplify right side
    237,081.78x = 68,381,952,187.52
  5. Step 5: Solve for x
    x = 68,381,952,187.52/237,081.78
  6. Step 6: Final answer
    x = 288,431.92

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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.