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Finding the Fourth Proportional to 381,351.48, 572,023.09 and 93,165.73

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Solution

The fourth proportional to 381,351.48, 572,023.09 and 93,165.73 is: 139,747.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,351.48 : 572,023.09 = 93,165.73 : x
  2. Step 2: Convert to fraction form
    381,351.48/572,023.09 = 93,165.73/x
  3. Step 3: Cross multiply
    381,351.48x = 572,023.09 × 93,165.73
  4. Step 4: Simplify right side
    381,351.48x = 53,292,948,756.71
  5. Step 5: Solve for x
    x = 53,292,948,756.71/381,351.48
  6. Step 6: Final answer
    x = 139,747.59

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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.