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Finding the Fourth Proportional to 135,565.66, 203,380.70 and 46,819.90

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Solution

The fourth proportional to 135,565.66, 203,380.70 and 46,819.90 is: 70,240.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,565.66 : 203,380.70 = 46,819.90 : x
  2. Step 2: Convert to fraction form
    135,565.66/203,380.70 = 46,819.90/x
  3. Step 3: Cross multiply
    135,565.66x = 203,380.70 × 46,819.90
  4. Step 4: Simplify right side
    135,565.66x = 9,522,264,035.93
  5. Step 5: Solve for x
    x = 9,522,264,035.93/135,565.66
  6. Step 6: Final answer
    x = 70,240.97

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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.