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Finding the Fourth Proportional to 265,247.08, 397,874.80 and 147,665.76

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Solution

The fourth proportional to 265,247.08, 397,874.80 and 147,665.76 is: 221,500.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,247.08 : 397,874.80 = 147,665.76 : x
  2. Step 2: Convert to fraction form
    265,247.08/397,874.80 = 147,665.76/x
  3. Step 3: Cross multiply
    265,247.08x = 397,874.80 × 147,665.76
  4. Step 4: Simplify right side
    265,247.08x = 58,752,484,726.85
  5. Step 5: Solve for x
    x = 58,752,484,726.85/265,247.08
  6. Step 6: Final answer
    x = 221,500.97

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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.