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Finding the Fourth Proportional to 200,536.48, 300,799.05 and 67,424.32

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Solution

The fourth proportional to 200,536.48, 300,799.05 and 67,424.32 is: 101,134.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,536.48 : 300,799.05 = 67,424.32 : x
  2. Step 2: Convert to fraction form
    200,536.48/300,799.05 = 67,424.32/x
  3. Step 3: Cross multiply
    200,536.48x = 300,799.05 × 67,424.32
  4. Step 4: Simplify right side
    200,536.48x = 20,281,171,402.90
  5. Step 5: Solve for x
    x = 20,281,171,402.90/200,536.48
  6. Step 6: Final answer
    x = 101,134.57

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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.