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Finding the Fourth Proportional to 159,701.98, 220,389.78 and 88,083.94

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Solution

The fourth proportional to 159,701.98, 220,389.78 and 88,083.94 is: 121,556.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,701.98 : 220,389.78 = 88,083.94 : x
  2. Step 2: Convert to fraction form
    159,701.98/220,389.78 = 88,083.94/x
  3. Step 3: Cross multiply
    159,701.98x = 220,389.78 × 88,083.94
  4. Step 4: Simplify right side
    159,701.98x = 19,412,800,158.13
  5. Step 5: Solve for x
    x = 19,412,800,158.13/159,701.98
  6. Step 6: Final answer
    x = 121,556.42

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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.