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Finding the Fourth Proportional to 79,149.94, 118,759.22 and 43,567.78

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Solution

The fourth proportional to 79,149.94, 118,759.22 and 43,567.78 is: 65,370.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,149.94 : 118,759.22 = 43,567.78 : x
  2. Step 2: Convert to fraction form
    79,149.94/118,759.22 = 43,567.78/x
  3. Step 3: Cross multiply
    79,149.94x = 118,759.22 × 43,567.78
  4. Step 4: Simplify right side
    79,149.94x = 5,174,075,569.93
  5. Step 5: Solve for x
    x = 5,174,075,569.93/79,149.94
  6. Step 6: Final answer
    x = 65,370.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.