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Finding the Fourth Proportional to 135,616.40, 203,424.60 and 35,776.40

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Solution

The fourth proportional to 135,616.40, 203,424.60 and 35,776.40 is: 53,664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,616.40 : 203,424.60 = 35,776.40 : x
  2. Step 2: Convert to fraction form
    135,616.40/203,424.60 = 35,776.40/x
  3. Step 3: Cross multiply
    135,616.40x = 203,424.60 × 35,776.40
  4. Step 4: Simplify right side
    135,616.40x = 7,277,799,859.44
  5. Step 5: Solve for x
    x = 7,277,799,859.44/135,616.40
  6. Step 6: Final answer
    x = 53,664.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.