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Finding the Fourth Proportional to 265,251.55, 397,890.52 and 75,740.03

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Solution

The fourth proportional to 265,251.55, 397,890.52 and 75,740.03 is: 113,613.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,251.55 : 397,890.52 = 75,740.03 : x
  2. Step 2: Convert to fraction form
    265,251.55/397,890.52 = 75,740.03/x
  3. Step 3: Cross multiply
    265,251.55x = 397,890.52 × 75,740.03
  4. Step 4: Simplify right side
    265,251.55x = 30,136,240,726.89
  5. Step 5: Solve for x
    x = 30,136,240,726.89/265,251.55
  6. Step 6: Final answer
    x = 113,613.82

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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.