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Finding the Fourth Proportional to 74,223, 111,055.50 and 52,079.58

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Solution

The fourth proportional to 74,223, 111,055.50 and 52,079.58 is: 77,923.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,223 : 111,055.50 = 52,079.58 : x
  2. Step 2: Convert to fraction form
    74,223/111,055.50 = 52,079.58/x
  3. Step 3: Cross multiply
    74,223x = 111,055.50 × 52,079.58
  4. Step 4: Simplify right side
    74,223x = 5,783,723,796.69
  5. Step 5: Solve for x
    x = 5,783,723,796.69/74,223
  6. Step 6: Final answer
    x = 77,923.61

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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.