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Finding the Fourth Proportional to 117,167.85, 161,689.64 and 63,452.43

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Solution

The fourth proportional to 117,167.85, 161,689.64 and 63,452.43 is: 87,563.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,167.85 : 161,689.64 = 63,452.43 : x
  2. Step 2: Convert to fraction form
    117,167.85/161,689.64 = 63,452.43/x
  3. Step 3: Cross multiply
    117,167.85x = 161,689.64 × 63,452.43
  4. Step 4: Simplify right side
    117,167.85x = 10,259,600,246.56
  5. Step 5: Solve for x
    x = 10,259,600,246.56/117,167.85
  6. Step 6: Final answer
    x = 87,563.27

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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.