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Finding the Fourth Proportional to 98,167.84, 135,468.03 and 59,991.29

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Solution

The fourth proportional to 98,167.84, 135,468.03 and 59,991.29 is: 82,785.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,167.84 : 135,468.03 = 59,991.29 : x
  2. Step 2: Convert to fraction form
    98,167.84/135,468.03 = 59,991.29/x
  3. Step 3: Cross multiply
    98,167.84x = 135,468.03 × 59,991.29
  4. Step 4: Simplify right side
    98,167.84x = 8,126,901,929.09
  5. Step 5: Solve for x
    x = 8,126,901,929.09/98,167.84
  6. Step 6: Final answer
    x = 82,785.79

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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.