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Finding the Fourth Proportional to 133,687.32, 200,628.99 and 107,705.76

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Solution

The fourth proportional to 133,687.32, 200,628.99 and 107,705.76 is: 161,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,687.32 : 200,628.99 = 107,705.76 : x
  2. Step 2: Convert to fraction form
    133,687.32/200,628.99 = 107,705.76/x
  3. Step 3: Cross multiply
    133,687.32x = 200,628.99 × 107,705.76
  4. Step 4: Simplify right side
    133,687.32x = 21,608,897,845.98
  5. Step 5: Solve for x
    x = 21,608,897,845.98/133,687.32
  6. Step 6: Final answer
    x = 161,637.60

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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.