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Finding the Fourth Proportional to 269,787.66, 372,287.88 and 148,909.56

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Solution

The fourth proportional to 269,787.66, 372,287.88 and 148,909.56 is: 205,484.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,787.66 : 372,287.88 = 148,909.56 : x
  2. Step 2: Convert to fraction form
    269,787.66/372,287.88 = 148,909.56/x
  3. Step 3: Cross multiply
    269,787.66x = 372,287.88 × 148,909.56
  4. Step 4: Simplify right side
    269,787.66x = 55,437,224,404.13
  5. Step 5: Solve for x
    x = 55,437,224,404.13/269,787.66
  6. Step 6: Final answer
    x = 205,484.66

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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.