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Finding the Fourth Proportional to 78,422.58, 108,199.26 and 44,425.62

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Solution

The fourth proportional to 78,422.58, 108,199.26 and 44,425.62 is: 61,293.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,422.58 : 108,199.26 = 44,425.62 : x
  2. Step 2: Convert to fraction form
    78,422.58/108,199.26 = 44,425.62/x
  3. Step 3: Cross multiply
    78,422.58x = 108,199.26 × 44,425.62
  4. Step 4: Simplify right side
    78,422.58x = 4,806,819,209.04
  5. Step 5: Solve for x
    x = 4,806,819,209.04/78,422.58
  6. Step 6: Final answer
    x = 61,293.82

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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.