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Finding the Fourth Proportional to 48,813.80, 73,220.70 and 40,503.20

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Solution

The fourth proportional to 48,813.80, 73,220.70 and 40,503.20 is: 60,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,813.80 : 73,220.70 = 40,503.20 : x
  2. Step 2: Convert to fraction form
    48,813.80/73,220.70 = 40,503.20/x
  3. Step 3: Cross multiply
    48,813.80x = 73,220.70 × 40,503.20
  4. Step 4: Simplify right side
    48,813.80x = 2,965,672,656.24
  5. Step 5: Solve for x
    x = 2,965,672,656.24/48,813.80
  6. Step 6: Final answer
    x = 60,754.80

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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.