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Finding the Fourth Proportional to 168,000.90, 252,001.35 and 43,341.90

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Solution

The fourth proportional to 168,000.90, 252,001.35 and 43,341.90 is: 65,012.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,000.90 : 252,001.35 = 43,341.90 : x
  2. Step 2: Convert to fraction form
    168,000.90/252,001.35 = 43,341.90/x
  3. Step 3: Cross multiply
    168,000.90x = 252,001.35 × 43,341.90
  4. Step 4: Simplify right side
    168,000.90x = 10,922,217,311.57
  5. Step 5: Solve for x
    x = 10,922,217,311.57/168,000.90
  6. Step 6: Final answer
    x = 65,012.85

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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.