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Finding the Fourth Proportional to 73,127.75, 109,669.34 and 38,048.27

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Solution

The fourth proportional to 73,127.75, 109,669.34 and 38,048.27 is: 57,060.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,127.75 : 109,669.34 = 38,048.27 : x
  2. Step 2: Convert to fraction form
    73,127.75/109,669.34 = 38,048.27/x
  3. Step 3: Cross multiply
    73,127.75x = 109,669.34 × 38,048.27
  4. Step 4: Simplify right side
    73,127.75x = 4,172,728,659.04
  5. Step 5: Solve for x
    x = 4,172,728,659.04/73,127.75
  6. Step 6: Final answer
    x = 57,060.81

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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.