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Finding the Fourth Proportional to 167,179.88, 230,712.48 and 91,728.36

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Solution

The fourth proportional to 167,179.88, 230,712.48 and 91,728.36 is: 126,587.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,179.88 : 230,712.48 = 91,728.36 : x
  2. Step 2: Convert to fraction form
    167,179.88/230,712.48 = 91,728.36/x
  3. Step 3: Cross multiply
    167,179.88x = 230,712.48 × 91,728.36
  4. Step 4: Simplify right side
    167,179.88x = 21,162,877,421.93
  5. Step 5: Solve for x
    x = 21,162,877,421.93/167,179.88
  6. Step 6: Final answer
    x = 126,587.47

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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.