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Finding the Fourth Proportional to 75,081.65, 103,619.76 and 44,866.33

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Solution

The fourth proportional to 75,081.65, 103,619.76 and 44,866.33 is: 61,919.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,081.65 : 103,619.76 = 44,866.33 : x
  2. Step 2: Convert to fraction form
    75,081.65/103,619.76 = 44,866.33/x
  3. Step 3: Cross multiply
    75,081.65x = 103,619.76 × 44,866.33
  4. Step 4: Simplify right side
    75,081.65x = 4,649,038,346.68
  5. Step 5: Solve for x
    x = 4,649,038,346.68/75,081.65
  6. Step 6: Final answer
    x = 61,919.77

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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.