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Finding the Fourth Proportional to 79,567.67, 109,801.95 and 43,757.78

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Solution

The fourth proportional to 79,567.67, 109,801.95 and 43,757.78 is: 60,384.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,567.67 : 109,801.95 = 43,757.78 : x
  2. Step 2: Convert to fraction form
    79,567.67/109,801.95 = 43,757.78/x
  3. Step 3: Cross multiply
    79,567.67x = 109,801.95 × 43,757.78
  4. Step 4: Simplify right side
    79,567.67x = 4,804,689,571.67
  5. Step 5: Solve for x
    x = 4,804,689,571.67/79,567.67
  6. Step 6: Final answer
    x = 60,384.95

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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.