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Finding the Fourth Proportional to 108,193.68, 149,281.68 and 62,844.72

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Solution

The fourth proportional to 108,193.68, 149,281.68 and 62,844.72 is: 86,710.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,193.68 : 149,281.68 = 62,844.72 : x
  2. Step 2: Convert to fraction form
    108,193.68/149,281.68 = 62,844.72/x
  3. Step 3: Cross multiply
    108,193.68x = 149,281.68 × 62,844.72
  4. Step 4: Simplify right side
    108,193.68x = 9,381,565,380.73
  5. Step 5: Solve for x
    x = 9,381,565,380.73/108,193.68
  6. Step 6: Final answer
    x = 86,710.84

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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.