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Finding the Fourth Proportional to 199,199.63, 274,888.50 and 108,553.74

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Solution

The fourth proportional to 199,199.63, 274,888.50 and 108,553.74 is: 149,800.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,199.63 : 274,888.50 = 108,553.74 : x
  2. Step 2: Convert to fraction form
    199,199.63/274,888.50 = 108,553.74/x
  3. Step 3: Cross multiply
    199,199.63x = 274,888.50 × 108,553.74
  4. Step 4: Simplify right side
    199,199.63x = 29,840,174,757.99
  5. Step 5: Solve for x
    x = 29,840,174,757.99/199,199.63
  6. Step 6: Final answer
    x = 149,800.35

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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.