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Finding the Fourth Proportional to 167,877.96, 231,672.98 and 91,397.58

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Solution

The fourth proportional to 167,877.96, 231,672.98 and 91,397.58 is: 126,129.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,877.96 : 231,672.98 = 91,397.58 : x
  2. Step 2: Convert to fraction form
    167,877.96/231,672.98 = 91,397.58/x
  3. Step 3: Cross multiply
    167,877.96x = 231,672.98 × 91,397.58
  4. Step 4: Simplify right side
    167,877.96x = 21,174,349,723.39
  5. Step 5: Solve for x
    x = 21,174,349,723.39/167,877.96
  6. Step 6: Final answer
    x = 126,129.42

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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.