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Finding the Fourth Proportional to 143,295.30, 214,615.14 and 68,468.04

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Solution

The fourth proportional to 143,295.30, 214,615.14 and 68,468.04 is: 102,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,295.30 : 214,615.14 = 68,468.04 : x
  2. Step 2: Convert to fraction form
    143,295.30/214,615.14 = 68,468.04/x
  3. Step 3: Cross multiply
    143,295.30x = 214,615.14 × 68,468.04
  4. Step 4: Simplify right side
    143,295.30x = 14,694,277,990.13
  5. Step 5: Solve for x
    x = 14,694,277,990.13/143,295.30
  6. Step 6: Final answer
    x = 102,545.43

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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.