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Finding the Fourth Proportional to 156,633.99, 216,158.13 and 88,650.96

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Solution

The fourth proportional to 156,633.99, 216,158.13 and 88,650.96 is: 122,340.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,633.99 : 216,158.13 = 88,650.96 : x
  2. Step 2: Convert to fraction form
    156,633.99/216,158.13 = 88,650.96/x
  3. Step 3: Cross multiply
    156,633.99x = 216,158.13 × 88,650.96
  4. Step 4: Simplify right side
    156,633.99x = 19,162,625,736.30
  5. Step 5: Solve for x
    x = 19,162,625,736.30/156,633.99
  6. Step 6: Final answer
    x = 122,340.15

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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.