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Finding the Fourth Proportional to 187,590.92, 281,355.98 and 69,317.96

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Solution

The fourth proportional to 187,590.92, 281,355.98 and 69,317.96 is: 103,965.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,590.92 : 281,355.98 = 69,317.96 : x
  2. Step 2: Convert to fraction form
    187,590.92/281,355.98 = 69,317.96/x
  3. Step 3: Cross multiply
    187,590.92x = 281,355.98 × 69,317.96
  4. Step 4: Simplify right side
    187,590.92x = 19,503,022,567.40
  5. Step 5: Solve for x
    x = 19,503,022,567.40/187,590.92
  6. Step 6: Final answer
    x = 103,965.71

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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.