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Finding the Fourth Proportional to 72,600.30, 108,754.65 and 41,399.10

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Solution

The fourth proportional to 72,600.30, 108,754.65 and 41,399.10 is: 62,015.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,600.30 : 108,754.65 = 41,399.10 : x
  2. Step 2: Convert to fraction form
    72,600.30/108,754.65 = 41,399.10/x
  3. Step 3: Cross multiply
    72,600.30x = 108,754.65 × 41,399.10
  4. Step 4: Simplify right side
    72,600.30x = 4,502,344,630.82
  5. Step 5: Solve for x
    x = 4,502,344,630.82/72,600.30
  6. Step 6: Final answer
    x = 62,015.51

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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.