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Finding the Fourth Proportional to 79,567.79, 109,801.36 and 43,757.80

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Solution

The fourth proportional to 79,567.79, 109,801.36 and 43,757.80 is: 60,384.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,567.79 : 109,801.36 = 43,757.80 : x
  2. Step 2: Convert to fraction form
    79,567.79/109,801.36 = 43,757.80/x
  3. Step 3: Cross multiply
    79,567.79x = 109,801.36 × 43,757.80
  4. Step 4: Simplify right side
    79,567.79x = 4,804,665,676.10
  5. Step 5: Solve for x
    x = 4,804,665,676.10/79,567.79
  6. Step 6: Final answer
    x = 60,384.56

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1.5x scale

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.