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Finding the Fourth Proportional to 167,158.86, 230,671.71 and 91,705.74

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Solution

The fourth proportional to 167,158.86, 230,671.71 and 91,705.74 is: 126,549.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,158.86 : 230,671.71 = 91,705.74 : x
  2. Step 2: Convert to fraction form
    167,158.86/230,671.71 = 91,705.74/x
  3. Step 3: Cross multiply
    167,158.86x = 230,671.71 × 91,705.74
  4. Step 4: Simplify right side
    167,158.86x = 21,153,919,862.62
  5. Step 5: Solve for x
    x = 21,153,919,862.62/167,158.86
  6. Step 6: Final answer
    x = 126,549.80

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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.