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Finding the Fourth Proportional to 269,337.48, 371,669 and 148,479.80

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Solution

The fourth proportional to 269,337.48, 371,669 and 148,479.80 is: 204,892.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,337.48 : 371,669 = 148,479.80 : x
  2. Step 2: Convert to fraction form
    269,337.48/371,669 = 148,479.80/x
  3. Step 3: Cross multiply
    269,337.48x = 371,669 × 148,479.80
  4. Step 4: Simplify right side
    269,337.48x = 55,185,338,786.20
  5. Step 5: Solve for x
    x = 55,185,338,786.20/269,337.48
  6. Step 6: Final answer
    x = 204,892.91

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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.