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Finding the Fourth Proportional to 67,886.35, 101,796.64 and 39,815.60

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Solution

The fourth proportional to 67,886.35, 101,796.64 and 39,815.60 is: 59,704.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,886.35 : 101,796.64 = 39,815.60 : x
  2. Step 2: Convert to fraction form
    67,886.35/101,796.64 = 39,815.60/x
  3. Step 3: Cross multiply
    67,886.35x = 101,796.64 × 39,815.60
  4. Step 4: Simplify right side
    67,886.35x = 4,053,093,691.06
  5. Step 5: Solve for x
    x = 4,053,093,691.06/67,886.35
  6. Step 6: Final answer
    x = 59,704.11

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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.