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Finding the Fourth Proportional to 368,361.16, 552,753.55 and 155,112.25

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Solution

The fourth proportional to 368,361.16, 552,753.55 and 155,112.25 is: 232,757.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,361.16 : 552,753.55 = 155,112.25 : x
  2. Step 2: Convert to fraction form
    368,361.16/552,753.55 = 155,112.25/x
  3. Step 3: Cross multiply
    368,361.16x = 552,753.55 × 155,112.25
  4. Step 4: Simplify right side
    368,361.16x = 85,738,846,835.99
  5. Step 5: Solve for x
    x = 85,738,846,835.99/368,361.16
  6. Step 6: Final answer
    x = 232,757.57

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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.