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Finding the Fourth Proportional to 117,418.67, 162,053.01 and 65,755.43

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Solution

The fourth proportional to 117,418.67, 162,053.01 and 65,755.43 is: 90,751.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,418.67 : 162,053.01 = 65,755.43 : x
  2. Step 2: Convert to fraction form
    117,418.67/162,053.01 = 65,755.43/x
  3. Step 3: Cross multiply
    117,418.67x = 162,053.01 × 65,755.43
  4. Step 4: Simplify right side
    117,418.67x = 10,655,864,545.08
  5. Step 5: Solve for x
    x = 10,655,864,545.08/117,418.67
  6. Step 6: Final answer
    x = 90,751.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.