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Finding the Fourth Proportional to 135,728.33, 203,592.49 and 73,520.33

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Solution

The fourth proportional to 135,728.33, 203,592.49 and 73,520.33 is: 110,280.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,728.33 : 203,592.49 = 73,520.33 : x
  2. Step 2: Convert to fraction form
    135,728.33/203,592.49 = 73,520.33/x
  3. Step 3: Cross multiply
    135,728.33x = 203,592.49 × 73,520.33
  4. Step 4: Simplify right side
    135,728.33x = 14,968,187,050.32
  5. Step 5: Solve for x
    x = 14,968,187,050.32/135,728.33
  6. Step 6: Final answer
    x = 110,280.49

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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.