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Finding the Fourth Proportional to 79,673.10, 109,950.66 and 43,863.81

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Solution

The fourth proportional to 79,673.10, 109,950.66 and 43,863.81 is: 60,533.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,673.10 : 109,950.66 = 43,863.81 : x
  2. Step 2: Convert to fraction form
    79,673.10/109,950.66 = 43,863.81/x
  3. Step 3: Cross multiply
    79,673.10x = 109,950.66 × 43,863.81
  4. Step 4: Simplify right side
    79,673.10x = 4,822,854,859.61
  5. Step 5: Solve for x
    x = 4,822,854,859.61/79,673.10
  6. Step 6: Final answer
    x = 60,533.04

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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.