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Finding the Fourth Proportional to 342,243.42, 513,233.90 and 117,561.97

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Solution

The fourth proportional to 342,243.42, 513,233.90 and 117,561.97 is: 176,297.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,243.42 : 513,233.90 = 117,561.97 : x
  2. Step 2: Convert to fraction form
    342,243.42/513,233.90 = 117,561.97/x
  3. Step 3: Cross multiply
    342,243.42x = 513,233.90 × 117,561.97
  4. Step 4: Simplify right side
    342,243.42x = 60,336,788,354.78
  5. Step 5: Solve for x
    x = 60,336,788,354.78/342,243.42
  6. Step 6: Final answer
    x = 176,297.88

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1.5x scale

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.