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Finding the Fourth Proportional to 143,592, 215,399.52 and 45,096

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Solution

The fourth proportional to 143,592, 215,399.52 and 45,096 is: 67,647.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,592 : 215,399.52 = 45,096 : x
  2. Step 2: Convert to fraction form
    143,592/215,399.52 = 45,096/x
  3. Step 3: Cross multiply
    143,592x = 215,399.52 × 45,096
  4. Step 4: Simplify right side
    143,592x = 9,713,656,753.92
  5. Step 5: Solve for x
    x = 9,713,656,753.92/143,592
  6. Step 6: Final answer
    x = 67,647.62

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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.