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Finding the Fourth Proportional to 170,138.75, 234,805.03 and 98,520.03

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Solution

The fourth proportional to 170,138.75, 234,805.03 and 98,520.03 is: 135,965.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,138.75 : 234,805.03 = 98,520.03 : x
  2. Step 2: Convert to fraction form
    170,138.75/234,805.03 = 98,520.03/x
  3. Step 3: Cross multiply
    170,138.75x = 234,805.03 × 98,520.03
  4. Step 4: Simplify right side
    170,138.75x = 23,132,998,353.45
  5. Step 5: Solve for x
    x = 23,132,998,353.45/170,138.75
  6. Step 6: Final answer
    x = 135,965.49

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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.