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Finding the Fourth Proportional to 121,266.72, 167,351 and 67,552.60

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Solution

The fourth proportional to 121,266.72, 167,351 and 67,552.60 is: 93,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,266.72 : 167,351 = 67,552.60 : x
  2. Step 2: Convert to fraction form
    121,266.72/167,351 = 67,552.60/x
  3. Step 3: Cross multiply
    121,266.72x = 167,351 × 67,552.60
  4. Step 4: Simplify right side
    121,266.72x = 11,304,995,162.60
  5. Step 5: Solve for x
    x = 11,304,995,162.60/121,266.72
  6. Step 6: Final answer
    x = 93,224.22

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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.