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Finding the Fourth Proportional to 98,168.03, 135,468.29 and 59,991.48

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Solution

The fourth proportional to 98,168.03, 135,468.29 and 59,991.48 is: 82,786.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,168.03 : 135,468.29 = 59,991.48 : x
  2. Step 2: Convert to fraction form
    98,168.03/135,468.29 = 59,991.48/x
  3. Step 3: Cross multiply
    98,168.03x = 135,468.29 × 59,991.48
  4. Step 4: Simplify right side
    98,168.03x = 8,126,943,360.15
  5. Step 5: Solve for x
    x = 8,126,943,360.15/98,168.03
  6. Step 6: Final answer
    x = 82,786.05

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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.