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Finding the Fourth Proportional to 80,379.79, 110,918.70 and 44,568.47

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Solution

The fourth proportional to 80,379.79, 110,918.70 and 44,568.47 is: 61,501.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,379.79 : 110,918.70 = 44,568.47 : x
  2. Step 2: Convert to fraction form
    80,379.79/110,918.70 = 44,568.47/x
  3. Step 3: Cross multiply
    80,379.79x = 110,918.70 × 44,568.47
  4. Step 4: Simplify right side
    80,379.79x = 4,943,477,030.69
  5. Step 5: Solve for x
    x = 4,943,477,030.69/80,379.79
  6. Step 6: Final answer
    x = 61,501.49

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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.