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Finding the Fourth Proportional to 100,914.92, 151,372.37 and 41,685.48

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Solution

The fourth proportional to 100,914.92, 151,372.37 and 41,685.48 is: 62,528.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,914.92 : 151,372.37 = 41,685.48 : x
  2. Step 2: Convert to fraction form
    100,914.92/151,372.37 = 41,685.48/x
  3. Step 3: Cross multiply
    100,914.92x = 151,372.37 × 41,685.48
  4. Step 4: Simplify right side
    100,914.92x = 6,310,029,693.76
  5. Step 5: Solve for x
    x = 6,310,029,693.76/100,914.92
  6. Step 6: Final answer
    x = 62,528.22

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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.