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Finding the Fourth Proportional to 74,353.44, 111,530.31 and 52,265.65

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Solution

The fourth proportional to 74,353.44, 111,530.31 and 52,265.65 is: 78,398.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,353.44 : 111,530.31 = 52,265.65 : x
  2. Step 2: Convert to fraction form
    74,353.44/111,530.31 = 52,265.65/x
  3. Step 3: Cross multiply
    74,353.44x = 111,530.31 × 52,265.65
  4. Step 4: Simplify right side
    74,353.44x = 5,829,204,146.85
  5. Step 5: Solve for x
    x = 5,829,204,146.85/74,353.44
  6. Step 6: Final answer
    x = 78,398.58

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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.