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Finding the Fourth Proportional to 73,126.50, 100,914.66 and 39,592.50

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Solution

The fourth proportional to 73,126.50, 100,914.66 and 39,592.50 is: 54,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,126.50 : 100,914.66 = 39,592.50 : x
  2. Step 2: Convert to fraction form
    73,126.50/100,914.66 = 39,592.50/x
  3. Step 3: Cross multiply
    73,126.50x = 100,914.66 × 39,592.50
  4. Step 4: Simplify right side
    73,126.50x = 3,995,463,676.05
  5. Step 5: Solve for x
    x = 3,995,463,676.05/73,126.50
  6. Step 6: Final answer
    x = 54,637.70

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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.