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Finding the Fourth Proportional to 73,304.64, 109,954.80 and 20,713.23

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Solution

The fourth proportional to 73,304.64, 109,954.80 and 20,713.23 is: 31,069.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,304.64 : 109,954.80 = 20,713.23 : x
  2. Step 2: Convert to fraction form
    73,304.64/109,954.80 = 20,713.23/x
  3. Step 3: Cross multiply
    73,304.64x = 109,954.80 × 20,713.23
  4. Step 4: Simplify right side
    73,304.64x = 2,277,519,062.00
  5. Step 5: Solve for x
    x = 2,277,519,062.00/73,304.64
  6. Step 6: Final answer
    x = 31,069.23

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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.