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Finding the Fourth Proportional to 170,473.56, 255,826.98 and 87,425.88

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Solution

The fourth proportional to 170,473.56, 255,826.98 and 87,425.88 is: 131,198.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,473.56 : 255,826.98 = 87,425.88 : x
  2. Step 2: Convert to fraction form
    170,473.56/255,826.98 = 87,425.88/x
  3. Step 3: Cross multiply
    170,473.56x = 255,826.98 × 87,425.88
  4. Step 4: Simplify right side
    170,473.56x = 22,365,898,854.24
  5. Step 5: Solve for x
    x = 22,365,898,854.24/170,473.56
  6. Step 6: Final answer
    x = 131,198.64

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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.