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Finding the Fourth Proportional to 269,863.20, 404,470.80 and 112,010.40

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Solution

The fourth proportional to 269,863.20, 404,470.80 and 112,010.40 is: 167,881.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,863.20 : 404,470.80 = 112,010.40 : x
  2. Step 2: Convert to fraction form
    269,863.20/404,470.80 = 112,010.40/x
  3. Step 3: Cross multiply
    269,863.20x = 404,470.80 × 112,010.40
  4. Step 4: Simplify right side
    269,863.20x = 45,304,936,096.32
  5. Step 5: Solve for x
    x = 45,304,936,096.32/269,863.20
  6. Step 6: Final answer
    x = 167,881.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.