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Finding the Fourth Proportional to 219,991.88, 303,593.34 and 124,498.56

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Solution

The fourth proportional to 219,991.88, 303,593.34 and 124,498.56 is: 171,810.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,991.88 : 303,593.34 = 124,498.56 : x
  2. Step 2: Convert to fraction form
    219,991.88/303,593.34 = 124,498.56/x
  3. Step 3: Cross multiply
    219,991.88x = 303,593.34 × 124,498.56
  4. Step 4: Simplify right side
    219,991.88x = 37,796,933,655.59
  5. Step 5: Solve for x
    x = 37,796,933,655.59/219,991.88
  6. Step 6: Final answer
    x = 171,810.59

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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.