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Finding the Fourth Proportional to 561,841.98, 842,787.57 and 162,523.11

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Solution

The fourth proportional to 561,841.98, 842,787.57 and 162,523.11 is: 243,791.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,841.98 : 842,787.57 = 162,523.11 : x
  2. Step 2: Convert to fraction form
    561,841.98/842,787.57 = 162,523.11/x
  3. Step 3: Cross multiply
    561,841.98x = 842,787.57 × 162,523.11
  4. Step 4: Simplify right side
    561,841.98x = 136,972,456,945.74
  5. Step 5: Solve for x
    x = 136,972,456,945.74/561,841.98
  6. Step 6: Final answer
    x = 243,791.78

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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.