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Finding the Fourth Proportional to 79,558.56, 109,791.20 and 43,750.88

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Solution

The fourth proportional to 79,558.56, 109,791.20 and 43,750.88 is: 60,376.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,558.56 : 109,791.20 = 43,750.88 : x
  2. Step 2: Convert to fraction form
    79,558.56/109,791.20 = 43,750.88/x
  3. Step 3: Cross multiply
    79,558.56x = 109,791.20 × 43,750.88
  4. Step 4: Simplify right side
    79,558.56x = 4,803,461,616.26
  5. Step 5: Solve for x
    x = 4,803,461,616.26/79,558.56
  6. Step 6: Final answer
    x = 60,376.43

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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.