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Finding the Fourth Proportional to 117,889.97, 176,677.20 and 57,826.59

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Solution

The fourth proportional to 117,889.97, 176,677.20 and 57,826.59 is: 86,662.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,889.97 : 176,677.20 = 57,826.59 : x
  2. Step 2: Convert to fraction form
    117,889.97/176,677.20 = 57,826.59/x
  3. Step 3: Cross multiply
    117,889.97x = 176,677.20 × 57,826.59
  4. Step 4: Simplify right side
    117,889.97x = 10,216,640,006.75
  5. Step 5: Solve for x
    x = 10,216,640,006.75/117,889.97
  6. Step 6: Final answer
    x = 86,662.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.