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Finding the Fourth Proportional to 73,441.80, 110,162.70 and 51,208.20

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Solution

The fourth proportional to 73,441.80, 110,162.70 and 51,208.20 is: 76,812.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,441.80 : 110,162.70 = 51,208.20 : x
  2. Step 2: Convert to fraction form
    73,441.80/110,162.70 = 51,208.20/x
  3. Step 3: Cross multiply
    73,441.80x = 110,162.70 × 51,208.20
  4. Step 4: Simplify right side
    73,441.80x = 5,641,233,574.14
  5. Step 5: Solve for x
    x = 5,641,233,574.14/73,441.80
  6. Step 6: Final answer
    x = 76,812.30

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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.