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Finding the Fourth Proportional to 231,597.75, 319,604.90 and 125,613.75

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Solution

The fourth proportional to 231,597.75, 319,604.90 and 125,613.75 is: 173,346.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,597.75 : 319,604.90 = 125,613.75 : x
  2. Step 2: Convert to fraction form
    231,597.75/319,604.90 = 125,613.75/x
  3. Step 3: Cross multiply
    231,597.75x = 319,604.90 × 125,613.75
  4. Step 4: Simplify right side
    231,597.75x = 40,146,770,007.38
  5. Step 5: Solve for x
    x = 40,146,770,007.38/231,597.75
  6. Step 6: Final answer
    x = 173,346.98

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1.5x scale

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.