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Finding the Fourth Proportional to 247,041.80, 370,562.70 and 80,846.60

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Solution

The fourth proportional to 247,041.80, 370,562.70 and 80,846.60 is: 121,269.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,041.80 : 370,562.70 = 80,846.60 : x
  2. Step 2: Convert to fraction form
    247,041.80/370,562.70 = 80,846.60/x
  3. Step 3: Cross multiply
    247,041.80x = 370,562.70 × 80,846.60
  4. Step 4: Simplify right side
    247,041.80x = 29,958,734,381.82
  5. Step 5: Solve for x
    x = 29,958,734,381.82/247,041.80
  6. Step 6: Final answer
    x = 121,269.90

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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.