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Finding the Fourth Proportional to 167,357.16, 230,952.87 and 90,875.88

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Solution

The fourth proportional to 167,357.16, 230,952.87 and 90,875.88 is: 125,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,357.16 : 230,952.87 = 90,875.88 : x
  2. Step 2: Convert to fraction form
    167,357.16/230,952.87 = 90,875.88/x
  3. Step 3: Cross multiply
    167,357.16x = 230,952.87 × 90,875.88
  4. Step 4: Simplify right side
    167,357.16x = 20,988,045,299.78
  5. Step 5: Solve for x
    x = 20,988,045,299.78/167,357.16
  6. Step 6: Final answer
    x = 125,408.71

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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.