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Finding the Fourth Proportional to 75,658.54, 104,408.78 and 43,845.88

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Solution

The fourth proportional to 75,658.54, 104,408.78 and 43,845.88 is: 60,507.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,658.54 : 104,408.78 = 43,845.88 : x
  2. Step 2: Convert to fraction form
    75,658.54/104,408.78 = 43,845.88/x
  3. Step 3: Cross multiply
    75,658.54x = 104,408.78 × 43,845.88
  4. Step 4: Simplify right side
    75,658.54x = 4,577,894,838.83
  5. Step 5: Solve for x
    x = 4,577,894,838.83/75,658.54
  6. Step 6: Final answer
    x = 60,507.31

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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.