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Finding the Fourth Proportional to 92,845.44, 139,326.48 and 45,489.60

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Solution

The fourth proportional to 92,845.44, 139,326.48 and 45,489.60 is: 68,262.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,845.44 : 139,326.48 = 45,489.60 : x
  2. Step 2: Convert to fraction form
    92,845.44/139,326.48 = 45,489.60/x
  3. Step 3: Cross multiply
    92,845.44x = 139,326.48 × 45,489.60
  4. Step 4: Simplify right side
    92,845.44x = 6,337,905,844.61
  5. Step 5: Solve for x
    x = 6,337,905,844.61/92,845.44
  6. Step 6: Final answer
    x = 68,262.97

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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.