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Finding the Fourth Proportional to 74,855.60, 112,227.24 and 45,267.38

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Solution

The fourth proportional to 74,855.60, 112,227.24 and 45,267.38 is: 67,867.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,855.60 : 112,227.24 = 45,267.38 : x
  2. Step 2: Convert to fraction form
    74,855.60/112,227.24 = 45,267.38/x
  3. Step 3: Cross multiply
    74,855.60x = 112,227.24 × 45,267.38
  4. Step 4: Simplify right side
    74,855.60x = 5,080,233,119.43
  5. Step 5: Solve for x
    x = 5,080,233,119.43/74,855.60
  6. Step 6: Final answer
    x = 67,867.11

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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.