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Finding the Fourth Proportional to 157,791.78, 236,689.76 and 52,610.78

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Solution

The fourth proportional to 157,791.78, 236,689.76 and 52,610.78 is: 78,916.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,791.78 : 236,689.76 = 52,610.78 : x
  2. Step 2: Convert to fraction form
    157,791.78/236,689.76 = 52,610.78/x
  3. Step 3: Cross multiply
    157,791.78x = 236,689.76 × 52,610.78
  4. Step 4: Simplify right side
    157,791.78x = 12,452,433,614.86
  5. Step 5: Solve for x
    x = 12,452,433,614.86/157,791.78
  6. Step 6: Final answer
    x = 78,916.87

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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.