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Finding the Fourth Proportional to 61,490.73, 92,236.12 and 47,471.23

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Solution

The fourth proportional to 61,490.73, 92,236.12 and 47,471.23 is: 71,206.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,490.73 : 92,236.12 = 47,471.23 : x
  2. Step 2: Convert to fraction form
    61,490.73/92,236.12 = 47,471.23/x
  3. Step 3: Cross multiply
    61,490.73x = 92,236.12 × 47,471.23
  4. Step 4: Simplify right side
    61,490.73x = 4,378,561,674.32
  5. Step 5: Solve for x
    x = 4,378,561,674.32/61,490.73
  6. Step 6: Final answer
    x = 71,206.86

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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.