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Finding the Fourth Proportional to 167,878.96, 231,674.36 and 91,398.58

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Solution

The fourth proportional to 167,878.96, 231,674.36 and 91,398.58 is: 126,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,878.96 : 231,674.36 = 91,398.58 : x
  2. Step 2: Convert to fraction form
    167,878.96/231,674.36 = 91,398.58/x
  3. Step 3: Cross multiply
    167,878.96x = 231,674.36 × 91,398.58
  4. Step 4: Simplify right side
    167,878.96x = 21,174,707,526.41
  5. Step 5: Solve for x
    x = 21,174,707,526.41/167,878.96
  6. Step 6: Final answer
    x = 126,130.80

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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.