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Finding the Fourth Proportional to 220,743.80, 304,617.44 and 125,248.44

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Solution

The fourth proportional to 220,743.80, 304,617.44 and 125,248.44 is: 172,837.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,743.80 : 304,617.44 = 125,248.44 : x
  2. Step 2: Convert to fraction form
    220,743.80/304,617.44 = 125,248.44/x
  3. Step 3: Cross multiply
    220,743.80x = 304,617.44 × 125,248.44
  4. Step 4: Simplify right side
    220,743.80x = 38,152,859,156.79
  5. Step 5: Solve for x
    x = 38,152,859,156.79/220,743.80
  6. Step 6: Final answer
    x = 172,837.74

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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.