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Finding the Fourth Proportional to 68,375.20, 102,562.80 and 58,352.80

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Solution

The fourth proportional to 68,375.20, 102,562.80 and 58,352.80 is: 87,529.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,375.20 : 102,562.80 = 58,352.80 : x
  2. Step 2: Convert to fraction form
    68,375.20/102,562.80 = 58,352.80/x
  3. Step 3: Cross multiply
    68,375.20x = 102,562.80 × 58,352.80
  4. Step 4: Simplify right side
    68,375.20x = 5,984,826,555.84
  5. Step 5: Solve for x
    x = 5,984,826,555.84/68,375.20
  6. Step 6: Final answer
    x = 87,529.20

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1.5x scale

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.