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Finding the Fourth Proportional to 218,817.68, 301,925.64 and 133,874.56

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Solution

The fourth proportional to 218,817.68, 301,925.64 and 133,874.56 is: 184,720.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,817.68 : 301,925.64 = 133,874.56 : x
  2. Step 2: Convert to fraction form
    218,817.68/301,925.64 = 133,874.56/x
  3. Step 3: Cross multiply
    218,817.68x = 301,925.64 × 133,874.56
  4. Step 4: Simplify right side
    218,817.68x = 40,420,162,207.72
  5. Step 5: Solve for x
    x = 40,420,162,207.72/218,817.68
  6. Step 6: Final answer
    x = 184,720.73

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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.