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Finding the Fourth Proportional to 92,330.73, 138,446.87 and 47,912.76

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Solution

The fourth proportional to 92,330.73, 138,446.87 and 47,912.76 is: 71,843.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,330.73 : 138,446.87 = 47,912.76 : x
  2. Step 2: Convert to fraction form
    92,330.73/138,446.87 = 47,912.76/x
  3. Step 3: Cross multiply
    92,330.73x = 138,446.87 × 47,912.76
  4. Step 4: Simplify right side
    92,330.73x = 6,633,371,415.50
  5. Step 5: Solve for x
    x = 6,633,371,415.50/92,330.73
  6. Step 6: Final answer
    x = 71,843.59

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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.