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Finding the Fourth Proportional to 269,151.40, 403,727.10 and 91,599.40

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Solution

The fourth proportional to 269,151.40, 403,727.10 and 91,599.40 is: 137,399.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,151.40 : 403,727.10 = 91,599.40 : x
  2. Step 2: Convert to fraction form
    269,151.40/403,727.10 = 91,599.40/x
  3. Step 3: Cross multiply
    269,151.40x = 403,727.10 × 91,599.40
  4. Step 4: Simplify right side
    269,151.40x = 36,981,160,123.74
  5. Step 5: Solve for x
    x = 36,981,160,123.74/269,151.40
  6. Step 6: Final answer
    x = 137,399.10

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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.