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Finding the Fourth Proportional to 165,387.98, 248,163.95 and 65,545.97

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Solution

The fourth proportional to 165,387.98, 248,163.95 and 65,545.97 is: 98,351.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,387.98 : 248,163.95 = 65,545.97 : x
  2. Step 2: Convert to fraction form
    165,387.98/248,163.95 = 65,545.97/x
  3. Step 3: Cross multiply
    165,387.98x = 248,163.95 × 65,545.97
  4. Step 4: Simplify right side
    165,387.98x = 16,266,145,744.83
  5. Step 5: Solve for x
    x = 16,266,145,744.83/165,387.98
  6. Step 6: Final answer
    x = 98,351.44

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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.