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Finding the Fourth Proportional to 269,475.20, 404,248.80 and 91,937.60

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Solution

The fourth proportional to 269,475.20, 404,248.80 and 91,937.60 is: 137,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,475.20 : 404,248.80 = 91,937.60 : x
  2. Step 2: Convert to fraction form
    269,475.20/404,248.80 = 91,937.60/x
  3. Step 3: Cross multiply
    269,475.20x = 404,248.80 × 91,937.60
  4. Step 4: Simplify right side
    269,475.20x = 37,165,664,474.88
  5. Step 5: Solve for x
    x = 37,165,664,474.88/269,475.20
  6. Step 6: Final answer
    x = 137,918.68

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1.5x scale

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.