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Finding the Fourth Proportional to 115,524.61, 159,418.25 and 64,527.19

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Solution

The fourth proportional to 115,524.61, 159,418.25 and 64,527.19 is: 89,044.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,524.61 : 159,418.25 = 64,527.19 : x
  2. Step 2: Convert to fraction form
    115,524.61/159,418.25 = 64,527.19/x
  3. Step 3: Cross multiply
    115,524.61x = 159,418.25 × 64,527.19
  4. Step 4: Simplify right side
    115,524.61x = 10,286,811,868.54
  5. Step 5: Solve for x
    x = 10,286,811,868.54/115,524.61
  6. Step 6: Final answer
    x = 89,044.33

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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.