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Finding the Fourth Proportional to 92,914.44, 128,199.87 and 54,675.66

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Solution

The fourth proportional to 92,914.44, 128,199.87 and 54,675.66 is: 75,439.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,914.44 : 128,199.87 = 54,675.66 : x
  2. Step 2: Convert to fraction form
    92,914.44/128,199.87 = 54,675.66/x
  3. Step 3: Cross multiply
    92,914.44x = 128,199.87 × 54,675.66
  4. Step 4: Simplify right side
    92,914.44x = 7,009,412,504.16
  5. Step 5: Solve for x
    x = 7,009,412,504.16/92,914.44
  6. Step 6: Final answer
    x = 75,439.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.