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Finding the Fourth Proportional to 269,641.49, 372,102.33 and 148,787.87

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Solution

The fourth proportional to 269,641.49, 372,102.33 and 148,787.87 is: 205,325.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,641.49 : 372,102.33 = 148,787.87 : x
  2. Step 2: Convert to fraction form
    269,641.49/372,102.33 = 148,787.87/x
  3. Step 3: Cross multiply
    269,641.49x = 372,102.33 × 148,787.87
  4. Step 4: Simplify right side
    269,641.49x = 55,364,313,102.74
  5. Step 5: Solve for x
    x = 55,364,313,102.74/269,641.49
  6. Step 6: Final answer
    x = 205,325.65

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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.