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Finding the Fourth Proportional to 65,379.73, 98,069.60 and 45,696.73

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Solution

The fourth proportional to 65,379.73, 98,069.60 and 45,696.73 is: 68,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,379.73 : 98,069.60 = 45,696.73 : x
  2. Step 2: Convert to fraction form
    65,379.73/98,069.60 = 45,696.73/x
  3. Step 3: Cross multiply
    65,379.73x = 98,069.60 × 45,696.73
  4. Step 4: Simplify right side
    65,379.73x = 4,481,460,032.41
  5. Step 5: Solve for x
    x = 4,481,460,032.41/65,379.73
  6. Step 6: Final answer
    x = 68,545.10

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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.