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Finding the Fourth Proportional to 48,850.40, 73,129.80 and 45,966.80

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Solution

The fourth proportional to 48,850.40, 73,129.80 and 45,966.80 is: 68,813.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,850.40 : 73,129.80 = 45,966.80 : x
  2. Step 2: Convert to fraction form
    48,850.40/73,129.80 = 45,966.80/x
  3. Step 3: Cross multiply
    48,850.40x = 73,129.80 × 45,966.80
  4. Step 4: Simplify right side
    48,850.40x = 3,361,542,890.64
  5. Step 5: Solve for x
    x = 3,361,542,890.64/48,850.40
  6. Step 6: Final answer
    x = 68,813.01

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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.