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Finding the Fourth Proportional to 75,879.45, 104,713.04 and 41,887.93

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Solution

The fourth proportional to 75,879.45, 104,713.04 and 41,887.93 is: 57,805.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,879.45 : 104,713.04 = 41,887.93 : x
  2. Step 2: Convert to fraction form
    75,879.45/104,713.04 = 41,887.93/x
  3. Step 3: Cross multiply
    75,879.45x = 104,713.04 × 41,887.93
  4. Step 4: Simplify right side
    75,879.45x = 4,386,212,528.88
  5. Step 5: Solve for x
    x = 4,386,212,528.88/75,879.45
  6. Step 6: Final answer
    x = 57,805.01

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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.