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Finding the Fourth Proportional to 229,074.82, 343,529.89 and 79,274.43

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Solution

The fourth proportional to 229,074.82, 343,529.89 and 79,274.43 is: 118,883.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,074.82 : 343,529.89 = 79,274.43 : x
  2. Step 2: Convert to fraction form
    229,074.82/343,529.89 = 79,274.43/x
  3. Step 3: Cross multiply
    229,074.82x = 343,529.89 × 79,274.43
  4. Step 4: Simplify right side
    229,074.82x = 27,233,136,019.53
  5. Step 5: Solve for x
    x = 27,233,136,019.53/229,074.82
  6. Step 6: Final answer
    x = 118,883.15

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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.