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Finding the Fourth Proportional to 269,805.01, 372,321.13 and 148,943.69

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Solution

The fourth proportional to 269,805.01, 372,321.13 and 148,943.69 is: 205,536.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,805.01 : 372,321.13 = 148,943.69 : x
  2. Step 2: Convert to fraction form
    269,805.01/372,321.13 = 148,943.69/x
  3. Step 3: Cross multiply
    269,805.01x = 372,321.13 × 148,943.69
  4. Step 4: Simplify right side
    269,805.01x = 55,454,882,594.81
  5. Step 5: Solve for x
    x = 55,454,882,594.81/269,805.01
  6. Step 6: Final answer
    x = 205,536.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.