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Finding the Fourth Proportional to 227,558.60, 341,618.70 and 143,318.60

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Solution

The fourth proportional to 227,558.60, 341,618.70 and 143,318.60 is: 215,154.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,558.60 : 341,618.70 = 143,318.60 : x
  2. Step 2: Convert to fraction form
    227,558.60/341,618.70 = 143,318.60/x
  3. Step 3: Cross multiply
    227,558.60x = 341,618.70 × 143,318.60
  4. Step 4: Simplify right side
    227,558.60x = 48,960,313,817.82
  5. Step 5: Solve for x
    x = 48,960,313,817.82/227,558.60
  6. Step 6: Final answer
    x = 215,154.75

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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.