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Finding the Fourth Proportional to 193,211.33, 289,761.60 and 65,113.66

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Solution

The fourth proportional to 193,211.33, 289,761.60 and 65,113.66 is: 97,651.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,211.33 : 289,761.60 = 65,113.66 : x
  2. Step 2: Convert to fraction form
    193,211.33/289,761.60 = 65,113.66/x
  3. Step 3: Cross multiply
    193,211.33x = 289,761.60 × 65,113.66
  4. Step 4: Simplify right side
    193,211.33x = 18,867,439,190.64
  5. Step 5: Solve for x
    x = 18,867,439,190.64/193,211.33
  6. Step 6: Final answer
    x = 97,651.83

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1.5x scale

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.