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Finding the Fourth Proportional to 156,008.97, 215,286.26 and 88,015.14

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Solution

The fourth proportional to 156,008.97, 215,286.26 and 88,015.14 is: 121,457.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,008.97 : 215,286.26 = 88,015.14 : x
  2. Step 2: Convert to fraction form
    156,008.97/215,286.26 = 88,015.14/x
  3. Step 3: Cross multiply
    156,008.97x = 215,286.26 × 88,015.14
  4. Step 4: Simplify right side
    156,008.97x = 18,948,449,873.90
  5. Step 5: Solve for x
    x = 18,948,449,873.90/156,008.97
  6. Step 6: Final answer
    x = 121,457.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.