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Finding the Fourth Proportional to 73,008.70, 109,513.06 and 25,660.96

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Solution

The fourth proportional to 73,008.70, 109,513.06 and 25,660.96 is: 38,491.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,008.70 : 109,513.06 = 25,660.96 : x
  2. Step 2: Convert to fraction form
    73,008.70/109,513.06 = 25,660.96/x
  3. Step 3: Cross multiply
    73,008.70x = 109,513.06 × 25,660.96
  4. Step 4: Simplify right side
    73,008.70x = 2,810,210,252.14
  5. Step 5: Solve for x
    x = 2,810,210,252.14/73,008.70
  6. Step 6: Final answer
    x = 38,491.44

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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.