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Finding the Fourth Proportional to 265,230.80, 397,975.80 and 124,965.20

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Solution

The fourth proportional to 265,230.80, 397,975.80 and 124,965.20 is: 187,508.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,230.80 : 397,975.80 = 124,965.20 : x
  2. Step 2: Convert to fraction form
    265,230.80/397,975.80 = 124,965.20/x
  3. Step 3: Cross multiply
    265,230.80x = 397,975.80 × 124,965.20
  4. Step 4: Simplify right side
    265,230.80x = 49,733,125,442.16
  5. Step 5: Solve for x
    x = 49,733,125,442.16/265,230.80
  6. Step 6: Final answer
    x = 187,508.86

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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.