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Finding the Fourth Proportional to 170,575.72, 255,754.10 and 70,804.78

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Solution

The fourth proportional to 170,575.72, 255,754.10 and 70,804.78 is: 106,161.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,575.72 : 255,754.10 = 70,804.78 : x
  2. Step 2: Convert to fraction form
    170,575.72/255,754.10 = 70,804.78/x
  3. Step 3: Cross multiply
    170,575.72x = 255,754.10 × 70,804.78
  4. Step 4: Simplify right side
    170,575.72x = 18,108,613,246.97
  5. Step 5: Solve for x
    x = 18,108,613,246.97/170,575.72
  6. Step 6: Final answer
    x = 106,161.73

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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.