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Finding the Fourth Proportional to 229,351.56, 343,736.70 and 129,567.97

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Solution

The fourth proportional to 229,351.56, 343,736.70 and 129,567.97 is: 194,187.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,351.56 : 343,736.70 = 129,567.97 : x
  2. Step 2: Convert to fraction form
    229,351.56/343,736.70 = 129,567.97/x
  3. Step 3: Cross multiply
    229,351.56x = 343,736.70 × 129,567.97
  4. Step 4: Simplify right side
    229,351.56x = 44,537,266,433.50
  5. Step 5: Solve for x
    x = 44,537,266,433.50/229,351.56
  6. Step 6: Final answer
    x = 194,187.76

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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.