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Finding the Fourth Proportional to 156,759.92, 216,328.61 and 88,776.87

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Solution

The fourth proportional to 156,759.92, 216,328.61 and 88,776.87 is: 122,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,759.92 : 216,328.61 = 88,776.87 : x
  2. Step 2: Convert to fraction form
    156,759.92/216,328.61 = 88,776.87/x
  3. Step 3: Cross multiply
    156,759.92x = 216,328.61 × 88,776.87
  4. Step 4: Simplify right side
    156,759.92x = 19,204,976,887.25
  5. Step 5: Solve for x
    x = 19,204,976,887.25/156,759.92
  6. Step 6: Final answer
    x = 122,512.04

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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.