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Finding the Fourth Proportional to 78,909.74, 108,891.02 and 44,926.52

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Solution

The fourth proportional to 78,909.74, 108,891.02 and 44,926.52 is: 61,996.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,909.74 : 108,891.02 = 44,926.52 : x
  2. Step 2: Convert to fraction form
    78,909.74/108,891.02 = 44,926.52/x
  3. Step 3: Cross multiply
    78,909.74x = 108,891.02 × 44,926.52
  4. Step 4: Simplify right side
    78,909.74x = 4,892,094,972.39
  5. Step 5: Solve for x
    x = 4,892,094,972.39/78,909.74
  6. Step 6: Final answer
    x = 61,996.09

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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.