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Finding the Fourth Proportional to 167,109.46, 230,609.49 and 90,630.25

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Solution

The fourth proportional to 167,109.46, 230,609.49 and 90,630.25 is: 125,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,109.46 : 230,609.49 = 90,630.25 : x
  2. Step 2: Convert to fraction form
    167,109.46/230,609.49 = 90,630.25/x
  3. Step 3: Cross multiply
    167,109.46x = 230,609.49 × 90,630.25
  4. Step 4: Simplify right side
    167,109.46x = 20,900,195,731.07
  5. Step 5: Solve for x
    x = 20,900,195,731.07/167,109.46
  6. Step 6: Final answer
    x = 125,068.90

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Similar ratio
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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.