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Finding the Fourth Proportional to 73,305.24, 109,959.90 and 25,913.63

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Solution

The fourth proportional to 73,305.24, 109,959.90 and 25,913.63 is: 38,871.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,305.24 : 109,959.90 = 25,913.63 : x
  2. Step 2: Convert to fraction form
    73,305.24/109,959.90 = 25,913.63/x
  3. Step 3: Cross multiply
    73,305.24x = 109,959.90 × 25,913.63
  4. Step 4: Simplify right side
    73,305.24x = 2,849,460,163.44
  5. Step 5: Solve for x
    x = 2,849,460,163.44/73,305.24
  6. Step 6: Final answer
    x = 38,871.17

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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.