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Finding the Fourth Proportional to 79,603.36, 109,849.68 and 43,791.04

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Solution

The fourth proportional to 79,603.36, 109,849.68 and 43,791.04 is: 60,430.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,603.36 : 109,849.68 = 43,791.04 : x
  2. Step 2: Convert to fraction form
    79,603.36/109,849.68 = 43,791.04/x
  3. Step 3: Cross multiply
    79,603.36x = 109,849.68 × 43,791.04
  4. Step 4: Simplify right side
    79,603.36x = 4,810,431,730.87
  5. Step 5: Solve for x
    x = 4,810,431,730.87/79,603.36
  6. Step 6: Final answer
    x = 60,430.01

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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.