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Finding the Fourth Proportional to 365,947.31, 505,236.51 and 235,178.01

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Solution

The fourth proportional to 365,947.31, 505,236.51 and 235,178.01 is: 324,692.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,947.31 : 505,236.51 = 235,178.01 : x
  2. Step 2: Convert to fraction form
    365,947.31/505,236.51 = 235,178.01/x
  3. Step 3: Cross multiply
    365,947.31x = 505,236.51 × 235,178.01
  4. Step 4: Simplify right side
    365,947.31x = 118,820,517,001.15
  5. Step 5: Solve for x
    x = 118,820,517,001.15/365,947.31
  6. Step 6: Final answer
    x = 324,692.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.