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Finding the Fourth Proportional to 220,763.28, 304,644.87 and 125,264.28

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Solution

The fourth proportional to 220,763.28, 304,644.87 and 125,264.28 is: 172,859.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,763.28 : 304,644.87 = 125,264.28 : x
  2. Step 2: Convert to fraction form
    220,763.28/304,644.87 = 125,264.28/x
  3. Step 3: Cross multiply
    220,763.28x = 304,644.87 × 125,264.28
  4. Step 4: Simplify right side
    220,763.28x = 38,161,120,296.24
  5. Step 5: Solve for x
    x = 38,161,120,296.24/220,763.28
  6. Step 6: Final answer
    x = 172,859.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.