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Finding the Fourth Proportional to 381,952.03, 572,367.28 and 192,151.52

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Solution

The fourth proportional to 381,952.03, 572,367.28 and 192,151.52 is: 287,945.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,952.03 : 572,367.28 = 192,151.52 : x
  2. Step 2: Convert to fraction form
    381,952.03/572,367.28 = 192,151.52/x
  3. Step 3: Cross multiply
    381,952.03x = 572,367.28 × 192,151.52
  4. Step 4: Simplify right side
    381,952.03x = 109,981,243,800.81
  5. Step 5: Solve for x
    x = 109,981,243,800.81/381,952.03
  6. Step 6: Final answer
    x = 287,945.18

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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.