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Finding the Fourth Proportional to 252,009.75, 347,773.46 and 138,834.93

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Solution

The fourth proportional to 252,009.75, 347,773.46 and 138,834.93 is: 191,592.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,009.75 : 347,773.46 = 138,834.93 : x
  2. Step 2: Convert to fraction form
    252,009.75/347,773.46 = 138,834.93/x
  3. Step 3: Cross multiply
    252,009.75x = 347,773.46 × 138,834.93
  4. Step 4: Simplify right side
    252,009.75x = 48,283,103,974.96
  5. Step 5: Solve for x
    x = 48,283,103,974.96/252,009.75
  6. Step 6: Final answer
    x = 191,592.21

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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.