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Finding the Fourth Proportional to 187,249.93, 280,847.25 and 68,893.74

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Solution

The fourth proportional to 187,249.93, 280,847.25 and 68,893.74 is: 103,330.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,249.93 : 280,847.25 = 68,893.74 : x
  2. Step 2: Convert to fraction form
    187,249.93/280,847.25 = 68,893.74/x
  3. Step 3: Cross multiply
    187,249.93x = 280,847.25 × 68,893.74
  4. Step 4: Simplify right side
    187,249.93x = 19,348,617,421.22
  5. Step 5: Solve for x
    x = 19,348,617,421.22/187,249.93
  6. Step 6: Final answer
    x = 103,330.44

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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.