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Finding the Fourth Proportional to 259,791.92, 358,474.40 and 157,764.32

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Solution

The fourth proportional to 259,791.92, 358,474.40 and 157,764.32 is: 217,691.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,791.92 : 358,474.40 = 157,764.32 : x
  2. Step 2: Convert to fraction form
    259,791.92/358,474.40 = 157,764.32/x
  3. Step 3: Cross multiply
    259,791.92x = 358,474.40 × 157,764.32
  4. Step 4: Simplify right side
    259,791.92x = 56,554,469,953.41
  5. Step 5: Solve for x
    x = 56,554,469,953.41/259,791.92
  6. Step 6: Final answer
    x = 217,691.41

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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.