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Finding the Fourth Proportional to 200,528.43, 300,781.57 and 67,394.94

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Solution

The fourth proportional to 200,528.43, 300,781.57 and 67,394.94 is: 101,088.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,528.43 : 300,781.57 = 67,394.94 : x
  2. Step 2: Convert to fraction form
    200,528.43/300,781.57 = 67,394.94/x
  3. Step 3: Cross multiply
    200,528.43x = 300,781.57 × 67,394.94
  4. Step 4: Simplify right side
    200,528.43x = 20,271,155,863.26
  5. Step 5: Solve for x
    x = 20,271,155,863.26/200,528.43
  6. Step 6: Final answer
    x = 101,088.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.