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Finding the Fourth Proportional to 73,718.28, 101,731.23 and 40,184.28

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Solution

The fourth proportional to 73,718.28, 101,731.23 and 40,184.28 is: 55,454.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,718.28 : 101,731.23 = 40,184.28 : x
  2. Step 2: Convert to fraction form
    73,718.28/101,731.23 = 40,184.28/x
  3. Step 3: Cross multiply
    73,718.28x = 101,731.23 × 40,184.28
  4. Step 4: Simplify right side
    73,718.28x = 4,087,996,231.06
  5. Step 5: Solve for x
    x = 4,087,996,231.06/73,718.28
  6. Step 6: Final answer
    x = 55,454.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.