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Finding the Fourth Proportional to 86,244.72, 118,978.38 and 62,333.52

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Solution

The fourth proportional to 86,244.72, 118,978.38 and 62,333.52 is: 85,991.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,244.72 : 118,978.38 = 62,333.52 : x
  2. Step 2: Convert to fraction form
    86,244.72/118,978.38 = 62,333.52/x
  3. Step 3: Cross multiply
    86,244.72x = 118,978.38 × 62,333.52
  4. Step 4: Simplify right side
    86,244.72x = 7,416,341,229.30
  5. Step 5: Solve for x
    x = 7,416,341,229.30/86,244.72
  6. Step 6: Final answer
    x = 85,991.83

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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.