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Finding the Fourth Proportional to 73,901.09, 110,868.03 and 21,306.48

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Solution

The fourth proportional to 73,901.09, 110,868.03 and 21,306.48 is: 31,964.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,901.09 : 110,868.03 = 21,306.48 : x
  2. Step 2: Convert to fraction form
    73,901.09/110,868.03 = 21,306.48/x
  3. Step 3: Cross multiply
    73,901.09x = 110,868.03 × 21,306.48
  4. Step 4: Simplify right side
    73,901.09x = 2,362,207,463.83
  5. Step 5: Solve for x
    x = 2,362,207,463.83/73,901.09
  6. Step 6: Final answer
    x = 31,964.45

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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.