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Finding the Fourth Proportional to 98,243.42, 135,579.04 and 55,799.42

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Solution

The fourth proportional to 98,243.42, 135,579.04 and 55,799.42 is: 77,004.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,243.42 : 135,579.04 = 55,799.42 : x
  2. Step 2: Convert to fraction form
    98,243.42/135,579.04 = 55,799.42/x
  3. Step 3: Cross multiply
    98,243.42x = 135,579.04 × 55,799.42
  4. Step 4: Simplify right side
    98,243.42x = 7,565,231,796.16
  5. Step 5: Solve for x
    x = 7,565,231,796.16/98,243.42
  6. Step 6: Final answer
    x = 77,004.97

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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.