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Finding the Fourth Proportional to 108,760.32, 163,105.92 and 73,923.84

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Solution

The fourth proportional to 108,760.32, 163,105.92 and 73,923.84 is: 110,862.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,760.32 : 163,105.92 = 73,923.84 : x
  2. Step 2: Convert to fraction form
    108,760.32/163,105.92 = 73,923.84/x
  3. Step 3: Cross multiply
    108,760.32x = 163,105.92 × 73,923.84
  4. Step 4: Simplify right side
    108,760.32x = 12,057,415,933.13
  5. Step 5: Solve for x
    x = 12,057,415,933.13/108,760.32
  6. Step 6: Final answer
    x = 110,862.27

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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.