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Finding the Fourth Proportional to 156,906.03, 216,523.14 and 88,919.02

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Solution

The fourth proportional to 156,906.03, 216,523.14 and 88,919.02 is: 122,704.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,906.03 : 216,523.14 = 88,919.02 : x
  2. Step 2: Convert to fraction form
    156,906.03/216,523.14 = 88,919.02/x
  3. Step 3: Cross multiply
    156,906.03x = 216,523.14 × 88,919.02
  4. Step 4: Simplify right side
    156,906.03x = 19,253,025,416.12
  5. Step 5: Solve for x
    x = 19,253,025,416.12/156,906.03
  6. Step 6: Final answer
    x = 122,704.18

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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.