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Finding the Fourth Proportional to 204,515.60, 307,003.80 and 157,974.80

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Solution

The fourth proportional to 204,515.60, 307,003.80 and 157,974.80 is: 237,140.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,515.60 : 307,003.80 = 157,974.80 : x
  2. Step 2: Convert to fraction form
    204,515.60/307,003.80 = 157,974.80/x
  3. Step 3: Cross multiply
    204,515.60x = 307,003.80 × 157,974.80
  4. Step 4: Simplify right side
    204,515.60x = 48,498,863,904.24
  5. Step 5: Solve for x
    x = 48,498,863,904.24/204,515.60
  6. Step 6: Final answer
    x = 237,140.17

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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.