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Finding the Fourth Proportional to 78,882.56, 118,358.52 and 41,433.93

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Solution

The fourth proportional to 78,882.56, 118,358.52 and 41,433.93 is: 62,169.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,882.56 : 118,358.52 = 41,433.93 : x
  2. Step 2: Convert to fraction form
    78,882.56/118,358.52 = 41,433.93/x
  3. Step 3: Cross multiply
    78,882.56x = 118,358.52 × 41,433.93
  4. Step 4: Simplify right side
    78,882.56x = 4,904,058,477.21
  5. Step 5: Solve for x
    x = 4,904,058,477.21/78,882.56
  6. Step 6: Final answer
    x = 62,169.11

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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.