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Finding the Fourth Proportional to 143,299.20, 214,948.80 and 44,803.20

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Solution

The fourth proportional to 143,299.20, 214,948.80 and 44,803.20 is: 67,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,299.20 : 214,948.80 = 44,803.20 : x
  2. Step 2: Convert to fraction form
    143,299.20/214,948.80 = 44,803.20/x
  3. Step 3: Cross multiply
    143,299.20x = 214,948.80 × 44,803.20
  4. Step 4: Simplify right side
    143,299.20x = 9,630,394,076.16
  5. Step 5: Solve for x
    x = 9,630,394,076.16/143,299.20
  6. Step 6: Final answer
    x = 67,204.80

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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.