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Finding the Fourth Proportional to 220,358.88, 304,045.20 and 124,843.68

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Solution

The fourth proportional to 220,358.88, 304,045.20 and 124,843.68 is: 172,255.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,358.88 : 304,045.20 = 124,843.68 : x
  2. Step 2: Convert to fraction form
    220,358.88/304,045.20 = 124,843.68/x
  3. Step 3: Cross multiply
    220,358.88x = 304,045.20 × 124,843.68
  4. Step 4: Simplify right side
    220,358.88x = 37,958,121,654.34
  5. Step 5: Solve for x
    x = 37,958,121,654.34/220,358.88
  6. Step 6: Final answer
    x = 172,255.92

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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.