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Finding the Fourth Proportional to 135,902.60, 203,756.70 and 60,961.40

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Solution

The fourth proportional to 135,902.60, 203,756.70 and 60,961.40 is: 91,398.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,902.60 : 203,756.70 = 60,961.40 : x
  2. Step 2: Convert to fraction form
    135,902.60/203,756.70 = 60,961.40/x
  3. Step 3: Cross multiply
    135,902.60x = 203,756.70 × 60,961.40
  4. Step 4: Simplify right side
    135,902.60x = 12,421,293,691.38
  5. Step 5: Solve for x
    x = 12,421,293,691.38/135,902.60
  6. Step 6: Final answer
    x = 91,398.50

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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.