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Finding the Fourth Proportional to 220,754.59, 304,641.90 and 125,261.02

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Solution

The fourth proportional to 220,754.59, 304,641.90 and 125,261.02 is: 172,860.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,754.59 : 304,641.90 = 125,261.02 : x
  2. Step 2: Convert to fraction form
    220,754.59/304,641.90 = 125,261.02/x
  3. Step 3: Cross multiply
    220,754.59x = 304,641.90 × 125,261.02
  4. Step 4: Simplify right side
    220,754.59x = 38,159,755,128.74
  5. Step 5: Solve for x
    x = 38,159,755,128.74/220,754.59
  6. Step 6: Final answer
    x = 172,860.53

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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.