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Finding the Fourth Proportional to 200,072.67, 276,244.86 and 123,696.48

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Solution

The fourth proportional to 200,072.67, 276,244.86 and 123,696.48 is: 170,790.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,072.67 : 276,244.86 = 123,696.48 : x
  2. Step 2: Convert to fraction form
    200,072.67/276,244.86 = 123,696.48/x
  3. Step 3: Cross multiply
    200,072.67x = 276,244.86 × 123,696.48
  4. Step 4: Simplify right side
    200,072.67x = 34,170,516,800.09
  5. Step 5: Solve for x
    x = 34,170,516,800.09/200,072.67
  6. Step 6: Final answer
    x = 170,790.53

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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.