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Finding the Fourth Proportional to 200,494.90, 300,425.94 and 73,961.02

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Solution

The fourth proportional to 200,494.90, 300,425.94 and 73,961.02 is: 110,824.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,494.90 : 300,425.94 = 73,961.02 : x
  2. Step 2: Convert to fraction form
    200,494.90/300,425.94 = 73,961.02/x
  3. Step 3: Cross multiply
    200,494.90x = 300,425.94 × 73,961.02
  4. Step 4: Simplify right side
    200,494.90x = 22,219,808,956.86
  5. Step 5: Solve for x
    x = 22,219,808,956.86/200,494.90
  6. Step 6: Final answer
    x = 110,824.81

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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.