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Finding the Fourth Proportional to 200,494.80, 276,679.80 and 109,850.40

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Solution

The fourth proportional to 200,494.80, 276,679.80 and 109,850.40 is: 151,591.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,494.80 : 276,679.80 = 109,850.40 : x
  2. Step 2: Convert to fraction form
    200,494.80/276,679.80 = 109,850.40/x
  3. Step 3: Cross multiply
    200,494.80x = 276,679.80 × 109,850.40
  4. Step 4: Simplify right side
    200,494.80x = 30,393,386,701.92
  5. Step 5: Solve for x
    x = 30,393,386,701.92/200,494.80
  6. Step 6: Final answer
    x = 151,591.90

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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.