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Finding the Fourth Proportional to 253,879.07, 350,353.11 and 140,709.11

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Solution

The fourth proportional to 253,879.07, 350,353.11 and 140,709.11 is: 194,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,879.07 : 350,353.11 = 140,709.11 : x
  2. Step 2: Convert to fraction form
    253,879.07/350,353.11 = 140,709.11/x
  3. Step 3: Cross multiply
    253,879.07x = 350,353.11 × 140,709.11
  4. Step 4: Simplify right side
    253,879.07x = 49,297,874,293.83
  5. Step 5: Solve for x
    x = 49,297,874,293.83/253,879.07
  6. Step 6: Final answer
    x = 194,178.57

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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.