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Finding the Fourth Proportional to 361,317.92, 542,004.92 and 108,578.68

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Solution

The fourth proportional to 361,317.92, 542,004.92 and 108,578.68 is: 162,876.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,317.92 : 542,004.92 = 108,578.68 : x
  2. Step 2: Convert to fraction form
    361,317.92/542,004.92 = 108,578.68/x
  3. Step 3: Cross multiply
    361,317.92x = 542,004.92 × 108,578.68
  4. Step 4: Simplify right side
    361,317.92x = 58,850,178,767.11
  5. Step 5: Solve for x
    x = 58,850,178,767.11/361,317.92
  6. Step 6: Final answer
    x = 162,876.45

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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.