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Finding the Fourth Proportional to 61,906.31, 92,912.49 and 61,440.36

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Solution

The fourth proportional to 61,906.31, 92,912.49 and 61,440.36 is: 92,213.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,906.31 : 92,912.49 = 61,440.36 : x
  2. Step 2: Convert to fraction form
    61,906.31/92,912.49 = 61,440.36/x
  3. Step 3: Cross multiply
    61,906.31x = 92,912.49 × 61,440.36
  4. Step 4: Simplify right side
    61,906.31x = 5,708,576,834.10
  5. Step 5: Solve for x
    x = 5,708,576,834.10/61,906.31
  6. Step 6: Final answer
    x = 92,213.17

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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.