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Finding the Fourth Proportional to 132,354.33, 182,675.51 and 78,628.97

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Solution

The fourth proportional to 132,354.33, 182,675.51 and 78,628.97 is: 108,523.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,354.33 : 182,675.51 = 78,628.97 : x
  2. Step 2: Convert to fraction form
    132,354.33/182,675.51 = 78,628.97/x
  3. Step 3: Cross multiply
    132,354.33x = 182,675.51 × 78,628.97
  4. Step 4: Simplify right side
    132,354.33x = 14,363,585,889.00
  5. Step 5: Solve for x
    x = 14,363,585,889.00/132,354.33
  6. Step 6: Final answer
    x = 108,523.73

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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.