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Finding the Fourth Proportional to 143,305.39, 214,958.11 and 64,327.35

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Solution

The fourth proportional to 143,305.39, 214,958.11 and 64,327.35 is: 96,491.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,305.39 : 214,958.11 = 64,327.35 : x
  2. Step 2: Convert to fraction form
    143,305.39/214,958.11 = 64,327.35/x
  3. Step 3: Cross multiply
    143,305.39x = 214,958.11 × 64,327.35
  4. Step 4: Simplify right side
    143,305.39x = 13,827,685,577.31
  5. Step 5: Solve for x
    x = 13,827,685,577.31/143,305.39
  6. Step 6: Final answer
    x = 96,491.04

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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.