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Finding the Fourth Proportional to 113,732.81, 156,919.78 and 73,448.27

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Solution

The fourth proportional to 113,732.81, 156,919.78 and 73,448.27 is: 101,338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,732.81 : 156,919.78 = 73,448.27 : x
  2. Step 2: Convert to fraction form
    113,732.81/156,919.78 = 73,448.27/x
  3. Step 3: Cross multiply
    113,732.81x = 156,919.78 × 73,448.27
  4. Step 4: Simplify right side
    113,732.81x = 11,525,486,369.78
  5. Step 5: Solve for x
    x = 11,525,486,369.78/113,732.81
  6. Step 6: Final answer
    x = 101,338.27

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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.