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Finding the Fourth Proportional to 204,322.60, 306,714.30 and 157,781.80

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Solution

The fourth proportional to 204,322.60, 306,714.30 and 157,781.80 is: 236,850.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,322.60 : 306,714.30 = 157,781.80 : x
  2. Step 2: Convert to fraction form
    204,322.60/306,714.30 = 157,781.80/x
  3. Step 3: Cross multiply
    204,322.60x = 306,714.30 × 157,781.80
  4. Step 4: Simplify right side
    204,322.60x = 48,393,934,339.74
  5. Step 5: Solve for x
    x = 48,393,934,339.74/204,322.60
  6. Step 6: Final answer
    x = 236,850.62

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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.