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Finding the Fourth Proportional to 227,889.72, 341,807.70 and 143,400.60

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Solution

The fourth proportional to 227,889.72, 341,807.70 and 143,400.60 is: 215,083.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,889.72 : 341,807.70 = 143,400.60 : x
  2. Step 2: Convert to fraction form
    227,889.72/341,807.70 = 143,400.60/x
  3. Step 3: Cross multiply
    227,889.72x = 341,807.70 × 143,400.60
  4. Step 4: Simplify right side
    227,889.72x = 49,015,429,264.62
  5. Step 5: Solve for x
    x = 49,015,429,264.62/227,889.72
  6. Step 6: Final answer
    x = 215,083.99

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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.