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Finding the Fourth Proportional to 101,997.99, 152,903.16 and 54,645.66

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Solution

The fourth proportional to 101,997.99, 152,903.16 and 54,645.66 is: 81,918.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,997.99 : 152,903.16 = 54,645.66 : x
  2. Step 2: Convert to fraction form
    101,997.99/152,903.16 = 54,645.66/x
  3. Step 3: Cross multiply
    101,997.99x = 152,903.16 × 54,645.66
  4. Step 4: Simplify right side
    101,997.99x = 8,355,494,094.29
  5. Step 5: Solve for x
    x = 8,355,494,094.29/101,997.99
  6. Step 6: Final answer
    x = 81,918.22

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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.