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Finding the Fourth Proportional to 229,144.84, 343,635.23 and 79,344.90

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Solution

The fourth proportional to 229,144.84, 343,635.23 and 79,344.90 is: 118,988.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,144.84 : 343,635.23 = 79,344.90 : x
  2. Step 2: Convert to fraction form
    229,144.84/343,635.23 = 79,344.90/x
  3. Step 3: Cross multiply
    229,144.84x = 343,635.23 × 79,344.90
  4. Step 4: Simplify right side
    229,144.84x = 27,265,702,960.83
  5. Step 5: Solve for x
    x = 27,265,702,960.83/229,144.84
  6. Step 6: Final answer
    x = 118,988.95

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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.