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Finding the Fourth Proportional to 220,291.25, 304,016.96 and 124,798.73

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Solution

The fourth proportional to 220,291.25, 304,016.96 and 124,798.73 is: 172,230.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,291.25 : 304,016.96 = 124,798.73 : x
  2. Step 2: Convert to fraction form
    220,291.25/304,016.96 = 124,798.73/x
  3. Step 3: Cross multiply
    220,291.25x = 304,016.96 × 124,798.73
  4. Step 4: Simplify right side
    220,291.25x = 37,940,929,970.44
  5. Step 5: Solve for x
    x = 37,940,929,970.44/220,291.25
  6. Step 6: Final answer
    x = 172,230.76

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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.