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Finding the Fourth Proportional to 79,908.56, 110,315.26 and 58,374.12

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Solution

The fourth proportional to 79,908.56, 110,315.26 and 58,374.12 is: 80,586.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,908.56 : 110,315.26 = 58,374.12 : x
  2. Step 2: Convert to fraction form
    79,908.56/110,315.26 = 58,374.12/x
  3. Step 3: Cross multiply
    79,908.56x = 110,315.26 × 58,374.12
  4. Step 4: Simplify right side
    79,908.56x = 6,439,556,298.04
  5. Step 5: Solve for x
    x = 6,439,556,298.04/79,908.56
  6. Step 6: Final answer
    x = 80,586.57

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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.