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Finding the Fourth Proportional to 78,162.55, 107,863.86 and 44,182.04

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Solution

The fourth proportional to 78,162.55, 107,863.86 and 44,182.04 is: 60,970.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,162.55 : 107,863.86 = 44,182.04 : x
  2. Step 2: Convert to fraction form
    78,162.55/107,863.86 = 44,182.04/x
  3. Step 3: Cross multiply
    78,162.55x = 107,863.86 × 44,182.04
  4. Step 4: Simplify right side
    78,162.55x = 4,765,645,377.07
  5. Step 5: Solve for x
    x = 4,765,645,377.07/78,162.55
  6. Step 6: Final answer
    x = 60,970.96

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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.