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Finding the Fourth Proportional to 61,772.92, 92,619.42 and 40,649.02

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Solution

The fourth proportional to 61,772.92, 92,619.42 and 40,649.02 is: 60,947.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,772.92 : 92,619.42 = 40,649.02 : x
  2. Step 2: Convert to fraction form
    61,772.92/92,619.42 = 40,649.02/x
  3. Step 3: Cross multiply
    61,772.92x = 92,619.42 × 40,649.02
  4. Step 4: Simplify right side
    61,772.92x = 3,764,888,655.97
  5. Step 5: Solve for x
    x = 3,764,888,655.97/61,772.92
  6. Step 6: Final answer
    x = 60,947.23

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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.