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Finding the Fourth Proportional to 269,470.60, 404,205.90 and 91,983.40

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Solution

The fourth proportional to 269,470.60, 404,205.90 and 91,983.40 is: 137,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,470.60 : 404,205.90 = 91,983.40 : x
  2. Step 2: Convert to fraction form
    269,470.60/404,205.90 = 91,983.40/x
  3. Step 3: Cross multiply
    269,470.60x = 404,205.90 × 91,983.40
  4. Step 4: Simplify right side
    269,470.60x = 37,180,232,982.06
  5. Step 5: Solve for x
    x = 37,180,232,982.06/269,470.60
  6. Step 6: Final answer
    x = 137,975.10

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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.