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Finding the Fourth Proportional to 61,034.40, 91,616.31 and 54,059.67

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Solution

The fourth proportional to 61,034.40, 91,616.31 and 54,059.67 is: 81,146.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,034.40 : 91,616.31 = 54,059.67 : x
  2. Step 2: Convert to fraction form
    61,034.40/91,616.31 = 54,059.67/x
  3. Step 3: Cross multiply
    61,034.40x = 91,616.31 × 54,059.67
  4. Step 4: Simplify right side
    61,034.40x = 4,952,747,485.22
  5. Step 5: Solve for x
    x = 4,952,747,485.22/61,034.40
  6. Step 6: Final answer
    x = 81,146.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.