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Finding the Fourth Proportional to 269,817.67, 372,348.85 and 148,959.15

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Solution

The fourth proportional to 269,817.67, 372,348.85 and 148,959.15 is: 205,563.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,817.67 : 372,348.85 = 148,959.15 : x
  2. Step 2: Convert to fraction form
    269,817.67/372,348.85 = 148,959.15/x
  3. Step 3: Cross multiply
    269,817.67x = 372,348.85 × 148,959.15
  4. Step 4: Simplify right side
    269,817.67x = 55,464,767,966.82
  5. Step 5: Solve for x
    x = 55,464,767,966.82/269,817.67
  6. Step 6: Final answer
    x = 205,563.88

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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.