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Finding the Fourth Proportional to 73,250.56, 109,866.06 and 20,664.28

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Solution

The fourth proportional to 73,250.56, 109,866.06 and 20,664.28 is: 30,993.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,250.56 : 109,866.06 = 20,664.28 : x
  2. Step 2: Convert to fraction form
    73,250.56/109,866.06 = 20,664.28/x
  3. Step 3: Cross multiply
    73,250.56x = 109,866.06 × 20,664.28
  4. Step 4: Simplify right side
    73,250.56x = 2,270,303,026.34
  5. Step 5: Solve for x
    x = 2,270,303,026.34/73,250.56
  6. Step 6: Final answer
    x = 30,993.66

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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.