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Finding the Fourth Proportional to 252,963.68, 349,096.92 and 139,793.72

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Solution

The fourth proportional to 252,963.68, 349,096.92 and 139,793.72 is: 192,919.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,963.68 : 349,096.92 = 139,793.72 : x
  2. Step 2: Convert to fraction form
    252,963.68/349,096.92 = 139,793.72/x
  3. Step 3: Cross multiply
    252,963.68x = 349,096.92 × 139,793.72
  4. Step 4: Simplify right side
    252,963.68x = 48,801,557,087.34
  5. Step 5: Solve for x
    x = 48,801,557,087.34/252,963.68
  6. Step 6: Final answer
    x = 192,919.22

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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.