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Finding the Fourth Proportional to 36,179.80, 54,315.90 and 35,807.20

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Solution

The fourth proportional to 36,179.80, 54,315.90 and 35,807.20 is: 53,756.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,179.80 : 54,315.90 = 35,807.20 : x
  2. Step 2: Convert to fraction form
    36,179.80/54,315.90 = 35,807.20/x
  3. Step 3: Cross multiply
    36,179.80x = 54,315.90 × 35,807.20
  4. Step 4: Simplify right side
    36,179.80x = 1,944,900,294.48
  5. Step 5: Solve for x
    x = 1,944,900,294.48/36,179.80
  6. Step 6: Final answer
    x = 53,756.52

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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.