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Finding the Fourth Proportional to 228,318.88, 315,143.38 and 132,844.02

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Solution

The fourth proportional to 228,318.88, 315,143.38 and 132,844.02 is: 183,361.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,318.88 : 315,143.38 = 132,844.02 : x
  2. Step 2: Convert to fraction form
    228,318.88/315,143.38 = 132,844.02/x
  3. Step 3: Cross multiply
    228,318.88x = 315,143.38 × 132,844.02
  4. Step 4: Simplify right side
    228,318.88x = 41,864,913,475.59
  5. Step 5: Solve for x
    x = 41,864,913,475.59/228,318.88
  6. Step 6: Final answer
    x = 183,361.59

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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.