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Finding the Fourth Proportional to 110,512.56, 152,467.29 and 72,293.88

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Solution

The fourth proportional to 110,512.56, 152,467.29 and 72,293.88 is: 99,739.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,512.56 : 152,467.29 = 72,293.88 : x
  2. Step 2: Convert to fraction form
    110,512.56/152,467.29 = 72,293.88/x
  3. Step 3: Cross multiply
    110,512.56x = 152,467.29 × 72,293.88
  4. Step 4: Simplify right side
    110,512.56x = 11,022,451,967.19
  5. Step 5: Solve for x
    x = 11,022,451,967.19/110,512.56
  6. Step 6: Final answer
    x = 99,739.36

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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.