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Finding the Fourth Proportional to 88,691.84, 132,967.11 and 51,209.39

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Solution

The fourth proportional to 88,691.84, 132,967.11 and 51,209.39 is: 76,773.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,691.84 : 132,967.11 = 51,209.39 : x
  2. Step 2: Convert to fraction form
    88,691.84/132,967.11 = 51,209.39/x
  3. Step 3: Cross multiply
    88,691.84x = 132,967.11 × 51,209.39
  4. Step 4: Simplify right side
    88,691.84x = 6,809,164,925.58
  5. Step 5: Solve for x
    x = 6,809,164,925.58/88,691.84
  6. Step 6: Final answer
    x = 76,773.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.