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Finding the Fourth Proportional to 143,874.25, 215,898.86 and 60,768.25

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Solution

The fourth proportional to 143,874.25, 215,898.86 and 60,768.25 is: 91,189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,874.25 : 215,898.86 = 60,768.25 : x
  2. Step 2: Convert to fraction form
    143,874.25/215,898.86 = 60,768.25/x
  3. Step 3: Cross multiply
    143,874.25x = 215,898.86 × 60,768.25
  4. Step 4: Simplify right side
    143,874.25x = 13,119,795,899.20
  5. Step 5: Solve for x
    x = 13,119,795,899.20/143,874.25
  6. Step 6: Final answer
    x = 91,189.33

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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.