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Finding the Fourth Proportional to 98,168.22, 135,468.54 and 59,991.66

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Solution

The fourth proportional to 98,168.22, 135,468.54 and 59,991.66 is: 82,786.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,168.22 : 135,468.54 = 59,991.66 : x
  2. Step 2: Convert to fraction form
    98,168.22/135,468.54 = 59,991.66/x
  3. Step 3: Cross multiply
    98,168.22x = 135,468.54 × 59,991.66
  4. Step 4: Simplify right side
    98,168.22x = 8,126,982,817.35
  5. Step 5: Solve for x
    x = 8,126,982,817.35/98,168.22
  6. Step 6: Final answer
    x = 82,786.29

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1.5x scale

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.