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Finding the Fourth Proportional to 173,899.90, 260,704.05 and 90,793.90

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Solution

The fourth proportional to 173,899.90, 260,704.05 and 90,793.90 is: 136,114.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,899.90 : 260,704.05 = 90,793.90 : x
  2. Step 2: Convert to fraction form
    173,899.90/260,704.05 = 90,793.90/x
  3. Step 3: Cross multiply
    173,899.90x = 260,704.05 × 90,793.90
  4. Step 4: Simplify right side
    173,899.90x = 23,670,337,445.30
  5. Step 5: Solve for x
    x = 23,670,337,445.30/173,899.90
  6. Step 6: Final answer
    x = 136,114.73

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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.