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Finding the Fourth Proportional to 353,177.92, 487,387.52 and 192,034.56

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Solution

The fourth proportional to 353,177.92, 487,387.52 and 192,034.56 is: 265,008.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,177.92 : 487,387.52 = 192,034.56 : x
  2. Step 2: Convert to fraction form
    353,177.92/487,387.52 = 192,034.56/x
  3. Step 3: Cross multiply
    353,177.92x = 487,387.52 × 192,034.56
  4. Step 4: Simplify right side
    353,177.92x = 93,595,247,952.69
  5. Step 5: Solve for x
    x = 93,595,247,952.69/353,177.92
  6. Step 6: Final answer
    x = 265,008.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.