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Finding the Fourth Proportional to 68,216.10, 102,324.15 and 58,374.60

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Solution

The fourth proportional to 68,216.10, 102,324.15 and 58,374.60 is: 87,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,216.10 : 102,324.15 = 58,374.60 : x
  2. Step 2: Convert to fraction form
    68,216.10/102,324.15 = 58,374.60/x
  3. Step 3: Cross multiply
    68,216.10x = 102,324.15 × 58,374.60
  4. Step 4: Simplify right side
    68,216.10x = 5,973,131,326.59
  5. Step 5: Solve for x
    x = 5,973,131,326.59/68,216.10
  6. Step 6: Final answer
    x = 87,561.90

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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.