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Finding the Fourth Proportional to 157,792.78, 236,691.26 and 52,611.78

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Solution

The fourth proportional to 157,792.78, 236,691.26 and 52,611.78 is: 78,918.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,792.78 : 236,691.26 = 52,611.78 : x
  2. Step 2: Convert to fraction form
    157,792.78/236,691.26 = 52,611.78/x
  3. Step 3: Cross multiply
    157,792.78x = 236,691.26 × 52,611.78
  4. Step 4: Simplify right side
    157,792.78x = 12,452,748,499.04
  5. Step 5: Solve for x
    x = 12,452,748,499.04/157,792.78
  6. Step 6: Final answer
    x = 78,918.37

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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.