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Finding the Fourth Proportional to 60,885.48, 91,200.70 and 48,974.92

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Solution

The fourth proportional to 60,885.48, 91,200.70 and 48,974.92 is: 73,359.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,885.48 : 91,200.70 = 48,974.92 : x
  2. Step 2: Convert to fraction form
    60,885.48/91,200.70 = 48,974.92/x
  3. Step 3: Cross multiply
    60,885.48x = 91,200.70 × 48,974.92
  4. Step 4: Simplify right side
    60,885.48x = 4,466,546,986.44
  5. Step 5: Solve for x
    x = 4,466,546,986.44/60,885.48
  6. Step 6: Final answer
    x = 73,359.81

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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.