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Finding the Fourth Proportional to 156,958.64, 216,610.32 and 88,976.93

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Solution

The fourth proportional to 156,958.64, 216,610.32 and 88,976.93 is: 122,792.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,958.64 : 216,610.32 = 88,976.93 : x
  2. Step 2: Convert to fraction form
    156,958.64/216,610.32 = 88,976.93/x
  3. Step 3: Cross multiply
    156,958.64x = 216,610.32 × 88,976.93
  4. Step 4: Simplify right side
    156,958.64x = 19,273,320,769.84
  5. Step 5: Solve for x
    x = 19,273,320,769.84/156,958.64
  6. Step 6: Final answer
    x = 122,792.36

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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.