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Finding the Fourth Proportional to 135,764.68, 203,564.86 and 60,870.92

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Solution

The fourth proportional to 135,764.68, 203,564.86 and 60,870.92 is: 91,269.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,764.68 : 203,564.86 = 60,870.92 : x
  2. Step 2: Convert to fraction form
    135,764.68/203,564.86 = 60,870.92/x
  3. Step 3: Cross multiply
    135,764.68x = 203,564.86 × 60,870.92
  4. Step 4: Simplify right side
    135,764.68x = 12,391,180,307.87
  5. Step 5: Solve for x
    x = 12,391,180,307.87/135,764.68
  6. Step 6: Final answer
    x = 91,269.54

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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.