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Finding the Fourth Proportional to 92,375.12, 138,851.58 and 60,986.90

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Solution

The fourth proportional to 92,375.12, 138,851.58 and 60,986.90 is: 91,671.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,375.12 : 138,851.58 = 60,986.90 : x
  2. Step 2: Convert to fraction form
    92,375.12/138,851.58 = 60,986.90/x
  3. Step 3: Cross multiply
    92,375.12x = 138,851.58 × 60,986.90
  4. Step 4: Simplify right side
    92,375.12x = 8,468,127,424.30
  5. Step 5: Solve for x
    x = 8,468,127,424.30/92,375.12
  6. Step 6: Final answer
    x = 91,671.08

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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.