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Finding the Fourth Proportional to 349,991.96, 482,984.70 and 199,088.60

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Solution

The fourth proportional to 349,991.96, 482,984.70 and 199,088.60 is: 274,739.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,991.96 : 482,984.70 = 199,088.60 : x
  2. Step 2: Convert to fraction form
    349,991.96/482,984.70 = 199,088.60/x
  3. Step 3: Cross multiply
    349,991.96x = 482,984.70 × 199,088.60
  4. Step 4: Simplify right side
    349,991.96x = 96,156,747,744.42
  5. Step 5: Solve for x
    x = 96,156,747,744.42/349,991.96
  6. Step 6: Final answer
    x = 274,739.88

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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.