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Finding the Fourth Proportional to 167,879.96, 231,675.74 and 91,399.58

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Solution

The fourth proportional to 167,879.96, 231,675.74 and 91,399.58 is: 126,132.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,879.96 : 231,675.74 = 91,399.58 : x
  2. Step 2: Convert to fraction form
    167,879.96/231,675.74 = 91,399.58/x
  3. Step 3: Cross multiply
    167,879.96x = 231,675.74 × 91,399.58
  4. Step 4: Simplify right side
    167,879.96x = 21,175,065,332.19
  5. Step 5: Solve for x
    x = 21,175,065,332.19/167,879.96
  6. Step 6: Final answer
    x = 126,132.18

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1.5x scale

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.