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Finding the Fourth Proportional to 156,489.57, 234,734.04 and 56,626.56

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Solution

The fourth proportional to 156,489.57, 234,734.04 and 56,626.56 is: 84,939.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,489.57 : 234,734.04 = 56,626.56 : x
  2. Step 2: Convert to fraction form
    156,489.57/234,734.04 = 56,626.56/x
  3. Step 3: Cross multiply
    156,489.57x = 234,734.04 × 56,626.56
  4. Step 4: Simplify right side
    156,489.57x = 13,292,181,200.10
  5. Step 5: Solve for x
    x = 13,292,181,200.10/156,489.57
  6. Step 6: Final answer
    x = 84,939.73

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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.