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Finding the Fourth Proportional to 61,661.20, 92,491.80 and 32,136.70

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Solution

The fourth proportional to 61,661.20, 92,491.80 and 32,136.70 is: 48,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,661.20 : 92,491.80 = 32,136.70 : x
  2. Step 2: Convert to fraction form
    61,661.20/92,491.80 = 32,136.70/x
  3. Step 3: Cross multiply
    61,661.20x = 92,491.80 × 32,136.70
  4. Step 4: Simplify right side
    61,661.20x = 2,972,381,229.06
  5. Step 5: Solve for x
    x = 2,972,381,229.06/61,661.20
  6. Step 6: Final answer
    x = 48,205.05

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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.