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Finding the Fourth Proportional to 200,194.71, 276,274.12 and 122,669.01

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Solution

The fourth proportional to 200,194.71, 276,274.12 and 122,669.01 is: 169,286.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,194.71 : 276,274.12 = 122,669.01 : x
  2. Step 2: Convert to fraction form
    200,194.71/276,274.12 = 122,669.01/x
  3. Step 3: Cross multiply
    200,194.71x = 276,274.12 × 122,669.01
  4. Step 4: Simplify right side
    200,194.71x = 33,890,272,175.68
  5. Step 5: Solve for x
    x = 33,890,272,175.68/200,194.71
  6. Step 6: Final answer
    x = 169,286.55

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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.