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Finding the Fourth Proportional to 201,286.01, 277,800.98 and 129,873.78

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Solution

The fourth proportional to 201,286.01, 277,800.98 and 129,873.78 is: 179,242.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,286.01 : 277,800.98 = 129,873.78 : x
  2. Step 2: Convert to fraction form
    201,286.01/277,800.98 = 129,873.78/x
  3. Step 3: Cross multiply
    201,286.01x = 277,800.98 × 129,873.78
  4. Step 4: Simplify right side
    201,286.01x = 36,079,062,710.94
  5. Step 5: Solve for x
    x = 36,079,062,710.94/201,286.01
  6. Step 6: Final answer
    x = 179,242.77

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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.