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Finding the Fourth Proportional to 143,076.62, 214,469.13 and 64,169.66

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Solution

The fourth proportional to 143,076.62, 214,469.13 and 64,169.66 is: 96,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,076.62 : 214,469.13 = 64,169.66 : x
  2. Step 2: Convert to fraction form
    143,076.62/214,469.13 = 64,169.66/x
  3. Step 3: Cross multiply
    143,076.62x = 214,469.13 × 64,169.66
  4. Step 4: Simplify right side
    143,076.62x = 13,762,411,152.60
  5. Step 5: Solve for x
    x = 13,762,411,152.60/143,076.62
  6. Step 6: Final answer
    x = 96,189.10

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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.