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Finding the Fourth Proportional to 99,583.60, 137,380.92 and 67,307.92

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Solution

The fourth proportional to 99,583.60, 137,380.92 and 67,307.92 is: 92,854.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,583.60 : 137,380.92 = 67,307.92 : x
  2. Step 2: Convert to fraction form
    99,583.60/137,380.92 = 67,307.92/x
  3. Step 3: Cross multiply
    99,583.60x = 137,380.92 × 67,307.92
  4. Step 4: Simplify right side
    99,583.60x = 9,246,823,972.89
  5. Step 5: Solve for x
    x = 9,246,823,972.89/99,583.60
  6. Step 6: Final answer
    x = 92,854.89

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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.