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Finding the Fourth Proportional to 203,619.02, 305,428.56 and 63,377.72

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Solution

The fourth proportional to 203,619.02, 305,428.56 and 63,377.72 is: 95,066.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,619.02 : 305,428.56 = 63,377.72 : x
  2. Step 2: Convert to fraction form
    203,619.02/305,428.56 = 63,377.72/x
  3. Step 3: Cross multiply
    203,619.02x = 305,428.56 × 63,377.72
  4. Step 4: Simplify right side
    203,619.02x = 19,357,365,755.68
  5. Step 5: Solve for x
    x = 19,357,365,755.68/203,619.02
  6. Step 6: Final answer
    x = 95,066.59

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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.