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Finding the Fourth Proportional to 168,672.90, 252,972.90 and 73,902.90

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Solution

The fourth proportional to 168,672.90, 252,972.90 and 73,902.90 is: 110,838.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,672.90 : 252,972.90 = 73,902.90 : x
  2. Step 2: Convert to fraction form
    168,672.90/252,972.90 = 73,902.90/x
  3. Step 3: Cross multiply
    168,672.90x = 252,972.90 × 73,902.90
  4. Step 4: Simplify right side
    168,672.90x = 18,695,430,931.41
  5. Step 5: Solve for x
    x = 18,695,430,931.41/168,672.90
  6. Step 6: Final answer
    x = 110,838.38

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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.