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Finding the Fourth Proportional to 78,699.62, 108,593.15 and 44,237.53

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Solution

The fourth proportional to 78,699.62, 108,593.15 and 44,237.53 is: 61,040.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,699.62 : 108,593.15 = 44,237.53 : x
  2. Step 2: Convert to fraction form
    78,699.62/108,593.15 = 44,237.53/x
  3. Step 3: Cross multiply
    78,699.62x = 108,593.15 × 44,237.53
  4. Step 4: Simplify right side
    78,699.62x = 4,803,892,730.92
  5. Step 5: Solve for x
    x = 4,803,892,730.92/78,699.62
  6. Step 6: Final answer
    x = 61,040.86

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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.