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Finding the Fourth Proportional to 98,331.92, 135,697.80 and 53,619.92

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Solution

The fourth proportional to 98,331.92, 135,697.80 and 53,619.92 is: 73,995.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,331.92 : 135,697.80 = 53,619.92 : x
  2. Step 2: Convert to fraction form
    98,331.92/135,697.80 = 53,619.92/x
  3. Step 3: Cross multiply
    98,331.92x = 135,697.80 × 53,619.92
  4. Step 4: Simplify right side
    98,331.92x = 7,276,105,180.18
  5. Step 5: Solve for x
    x = 7,276,105,180.18/98,331.92
  6. Step 6: Final answer
    x = 73,995.35

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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.