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Finding the Fourth Proportional to 65,491.73, 98,089.90 and 45,857.94

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Solution

The fourth proportional to 65,491.73, 98,089.90 and 45,857.94 is: 68,683.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,491.73 : 98,089.90 = 45,857.94 : x
  2. Step 2: Convert to fraction form
    65,491.73/98,089.90 = 45,857.94/x
  3. Step 3: Cross multiply
    65,491.73x = 98,089.90 × 45,857.94
  4. Step 4: Simplify right side
    65,491.73x = 4,498,200,519.52
  5. Step 5: Solve for x
    x = 4,498,200,519.52/65,491.73
  6. Step 6: Final answer
    x = 68,683.49

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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.