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Finding the Fourth Proportional to 80,666.61, 111,322.63 and 44,369.59

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Solution

The fourth proportional to 80,666.61, 111,322.63 and 44,369.59 is: 61,231.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,666.61 : 111,322.63 = 44,369.59 : x
  2. Step 2: Convert to fraction form
    80,666.61/111,322.63 = 44,369.59/x
  3. Step 3: Cross multiply
    80,666.61x = 111,322.63 × 44,369.59
  4. Step 4: Simplify right side
    80,666.61x = 4,939,339,770.97
  5. Step 5: Solve for x
    x = 4,939,339,770.97/80,666.61
  6. Step 6: Final answer
    x = 61,231.53

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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.