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Finding the Fourth Proportional to 135,356.99, 203,063.72 and 40,583.34

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Solution

The fourth proportional to 135,356.99, 203,063.72 and 40,583.34 is: 60,883.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,356.99 : 203,063.72 = 40,583.34 : x
  2. Step 2: Convert to fraction form
    135,356.99/203,063.72 = 40,583.34/x
  3. Step 3: Cross multiply
    135,356.99x = 203,063.72 × 40,583.34
  4. Step 4: Simplify right side
    135,356.99x = 8,241,003,787.51
  5. Step 5: Solve for x
    x = 8,241,003,787.51/135,356.99
  6. Step 6: Final answer
    x = 60,883.48

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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.