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Finding the Fourth Proportional to 220,305.54, 304,020.90 and 124,830.44

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Solution

The fourth proportional to 220,305.54, 304,020.90 and 124,830.44 is: 172,265.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,305.54 : 304,020.90 = 124,830.44 : x
  2. Step 2: Convert to fraction form
    220,305.54/304,020.90 = 124,830.44/x
  3. Step 3: Cross multiply
    220,305.54x = 304,020.90 × 124,830.44
  4. Step 4: Simplify right side
    220,305.54x = 37,951,062,716.20
  5. Step 5: Solve for x
    x = 37,951,062,716.20/220,305.54
  6. Step 6: Final answer
    x = 172,265.58

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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.