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Finding the Fourth Proportional to 157,367.60, 236,121.17 and 82,469.93

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Solution

The fourth proportional to 157,367.60, 236,121.17 and 82,469.93 is: 123,741.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,367.60 : 236,121.17 = 82,469.93 : x
  2. Step 2: Convert to fraction form
    157,367.60/236,121.17 = 82,469.93/x
  3. Step 3: Cross multiply
    157,367.60x = 236,121.17 × 82,469.93
  4. Step 4: Simplify right side
    157,367.60x = 19,472,895,949.07
  5. Step 5: Solve for x
    x = 19,472,895,949.07/157,367.60
  6. Step 6: Final answer
    x = 123,741.46

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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.