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Finding the Fourth Proportional to 203,361.84, 305,068.28 and 61,184.97

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Solution

The fourth proportional to 203,361.84, 305,068.28 and 61,184.97 is: 91,785.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,361.84 : 305,068.28 = 61,184.97 : x
  2. Step 2: Convert to fraction form
    203,361.84/305,068.28 = 61,184.97/x
  3. Step 3: Cross multiply
    203,361.84x = 305,068.28 × 61,184.97
  4. Step 4: Simplify right side
    203,361.84x = 18,665,593,253.83
  5. Step 5: Solve for x
    x = 18,665,593,253.83/203,361.84
  6. Step 6: Final answer
    x = 91,785.13

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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.