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Finding the Fourth Proportional to 269,080.40, 403,332.60 and 91,422.80

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Solution

The fourth proportional to 269,080.40, 403,332.60 and 91,422.80 is: 137,036.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,080.40 : 403,332.60 = 91,422.80 : x
  2. Step 2: Convert to fraction form
    269,080.40/403,332.60 = 91,422.80/x
  3. Step 3: Cross multiply
    269,080.40x = 403,332.60 × 91,422.80
  4. Step 4: Simplify right side
    269,080.40x = 36,873,795,623.28
  5. Step 5: Solve for x
    x = 36,873,795,623.28/269,080.40
  6. Step 6: Final answer
    x = 137,036.35

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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.