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Finding the Fourth Proportional to 88,162.64, 121,675.56 and 54,633.68

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Solution

The fourth proportional to 88,162.64, 121,675.56 and 54,633.68 is: 75,401.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,162.64 : 121,675.56 = 54,633.68 : x
  2. Step 2: Convert to fraction form
    88,162.64/121,675.56 = 54,633.68/x
  3. Step 3: Cross multiply
    88,162.64x = 121,675.56 × 54,633.68
  4. Step 4: Simplify right side
    88,162.64x = 6,647,583,608.86
  5. Step 5: Solve for x
    x = 6,647,583,608.86/88,162.64
  6. Step 6: Final answer
    x = 75,401.37

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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.