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Finding the Fourth Proportional to 95,668.78, 143,451.06 and 61,930.26

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Solution

The fourth proportional to 95,668.78, 143,451.06 and 61,930.26 is: 92,861.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,668.78 : 143,451.06 = 61,930.26 : x
  2. Step 2: Convert to fraction form
    95,668.78/143,451.06 = 61,930.26/x
  3. Step 3: Cross multiply
    95,668.78x = 143,451.06 × 61,930.26
  4. Step 4: Simplify right side
    95,668.78x = 8,883,961,443.08
  5. Step 5: Solve for x
    x = 8,883,961,443.08/95,668.78
  6. Step 6: Final answer
    x = 92,861.66

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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.