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Finding the Fourth Proportional to 75,716.70, 104,479.83 and 43,884.06

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Solution

The fourth proportional to 75,716.70, 104,479.83 and 43,884.06 is: 60,554.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,716.70 : 104,479.83 = 43,884.06 : x
  2. Step 2: Convert to fraction form
    75,716.70/104,479.83 = 43,884.06/x
  3. Step 3: Cross multiply
    75,716.70x = 104,479.83 × 43,884.06
  4. Step 4: Simplify right side
    75,716.70x = 4,584,999,128.51
  5. Step 5: Solve for x
    x = 4,584,999,128.51/75,716.70
  6. Step 6: Final answer
    x = 60,554.66

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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.