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Finding the Fourth Proportional to 109,240.96, 150,751.68 and 61,494.88

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Solution

The fourth proportional to 109,240.96, 150,751.68 and 61,494.88 is: 84,862.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,240.96 : 150,751.68 = 61,494.88 : x
  2. Step 2: Convert to fraction form
    109,240.96/150,751.68 = 61,494.88/x
  3. Step 3: Cross multiply
    109,240.96x = 150,751.68 × 61,494.88
  4. Step 4: Simplify right side
    109,240.96x = 9,270,456,471.40
  5. Step 5: Solve for x
    x = 9,270,456,471.40/109,240.96
  6. Step 6: Final answer
    x = 84,862.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.