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Finding the Fourth Proportional to 40,933.20, 61,399.80 and 36,094.80

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Solution

The fourth proportional to 40,933.20, 61,399.80 and 36,094.80 is: 54,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,933.20 : 61,399.80 = 36,094.80 : x
  2. Step 2: Convert to fraction form
    40,933.20/61,399.80 = 36,094.80/x
  3. Step 3: Cross multiply
    40,933.20x = 61,399.80 × 36,094.80
  4. Step 4: Simplify right side
    40,933.20x = 2,216,213,501.04
  5. Step 5: Solve for x
    x = 2,216,213,501.04/40,933.20
  6. Step 6: Final answer
    x = 54,142.20

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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.