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Finding the Fourth Proportional to 98,331.88, 135,697.96 and 53,619.88

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Solution

The fourth proportional to 98,331.88, 135,697.96 and 53,619.88 is: 73,995.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,331.88 : 135,697.96 = 53,619.88 : x
  2. Step 2: Convert to fraction form
    98,331.88/135,697.96 = 53,619.88/x
  3. Step 3: Cross multiply
    98,331.88x = 135,697.96 × 53,619.88
  4. Step 4: Simplify right side
    98,331.88x = 7,276,108,331.44
  5. Step 5: Solve for x
    x = 7,276,108,331.44/98,331.88
  6. Step 6: Final answer
    x = 73,995.42

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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.