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Finding the Fourth Proportional to 113,694.36, 170,542.62 and 43,557

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Solution

The fourth proportional to 113,694.36, 170,542.62 and 43,557 is: 65,335.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,694.36 : 170,542.62 = 43,557 : x
  2. Step 2: Convert to fraction form
    113,694.36/170,542.62 = 43,557/x
  3. Step 3: Cross multiply
    113,694.36x = 170,542.62 × 43,557
  4. Step 4: Simplify right side
    113,694.36x = 7,428,324,899.34
  5. Step 5: Solve for x
    x = 7,428,324,899.34/113,694.36
  6. Step 6: Final answer
    x = 65,335.91

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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.