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Finding the Fourth Proportional to 151,696.78, 209,253.17 and 97,229.55

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Solution

The fourth proportional to 151,696.78, 209,253.17 and 97,229.55 is: 134,120.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,696.78 : 209,253.17 = 97,229.55 : x
  2. Step 2: Convert to fraction form
    151,696.78/209,253.17 = 97,229.55/x
  3. Step 3: Cross multiply
    151,696.78x = 209,253.17 × 97,229.55
  4. Step 4: Simplify right side
    151,696.78x = 20,345,591,555.17
  5. Step 5: Solve for x
    x = 20,345,591,555.17/151,696.78
  6. Step 6: Final answer
    x = 134,120.13

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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.