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Finding the Fourth Proportional to 73,989.46, 111,092.33 and 45,828.19

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Solution

The fourth proportional to 73,989.46, 111,092.33 and 45,828.19 is: 68,809.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,989.46 : 111,092.33 = 45,828.19 : x
  2. Step 2: Convert to fraction form
    73,989.46/111,092.33 = 45,828.19/x
  3. Step 3: Cross multiply
    73,989.46x = 111,092.33 × 45,828.19
  4. Step 4: Simplify right side
    73,989.46x = 5,091,160,406.78
  5. Step 5: Solve for x
    x = 5,091,160,406.78/73,989.46
  6. Step 6: Final answer
    x = 68,809.27

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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.