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Finding the Fourth Proportional to 156,791.56, 235,191.80 and 38,462.80

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Solution

The fourth proportional to 156,791.56, 235,191.80 and 38,462.80 is: 57,695.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,791.56 : 235,191.80 = 38,462.80 : x
  2. Step 2: Convert to fraction form
    156,791.56/235,191.80 = 38,462.80/x
  3. Step 3: Cross multiply
    156,791.56x = 235,191.80 × 38,462.80
  4. Step 4: Simplify right side
    156,791.56x = 9,046,135,165.04
  5. Step 5: Solve for x
    x = 9,046,135,165.04/156,791.56
  6. Step 6: Final answer
    x = 57,695.29

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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.