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Finding the Fourth Proportional to 61,491.80, 92,237.52 and 19,375.40

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Solution

The fourth proportional to 61,491.80, 92,237.52 and 19,375.40 is: 29,063.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,491.80 : 92,237.52 = 19,375.40 : x
  2. Step 2: Convert to fraction form
    61,491.80/92,237.52 = 19,375.40/x
  3. Step 3: Cross multiply
    61,491.80x = 92,237.52 × 19,375.40
  4. Step 4: Simplify right side
    61,491.80x = 1,787,138,845.01
  5. Step 5: Solve for x
    x = 1,787,138,845.01/61,491.80
  6. Step 6: Final answer
    x = 29,063.04

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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.