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Finding the Fourth Proportional to 227,666.25, 341,515.89 and 87,424.89

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Solution

The fourth proportional to 227,666.25, 341,515.89 and 87,424.89 is: 131,143.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,666.25 : 341,515.89 = 87,424.89 : x
  2. Step 2: Convert to fraction form
    227,666.25/341,515.89 = 87,424.89/x
  3. Step 3: Cross multiply
    227,666.25x = 341,515.89 × 87,424.89
  4. Step 4: Simplify right side
    227,666.25x = 29,856,989,116.50
  5. Step 5: Solve for x
    x = 29,856,989,116.50/227,666.25
  6. Step 6: Final answer
    x = 131,143.68

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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.