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Finding the Fourth Proportional to 73,635.20, 101,615.82 and 40,101.20

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Solution

The fourth proportional to 73,635.20, 101,615.82 and 40,101.20 is: 55,339.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,635.20 : 101,615.82 = 40,101.20 : x
  2. Step 2: Convert to fraction form
    73,635.20/101,615.82 = 40,101.20/x
  3. Step 3: Cross multiply
    73,635.20x = 101,615.82 × 40,101.20
  4. Step 4: Simplify right side
    73,635.20x = 4,074,916,320.98
  5. Step 5: Solve for x
    x = 4,074,916,320.98/73,635.20
  6. Step 6: Final answer
    x = 55,339.24

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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.