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Finding the Fourth Proportional to 250,842.69, 346,169.70 and 141,939

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Solution

The fourth proportional to 250,842.69, 346,169.70 and 141,939 is: 195,879.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,842.69 : 346,169.70 = 141,939 : x
  2. Step 2: Convert to fraction form
    250,842.69/346,169.70 = 141,939/x
  3. Step 3: Cross multiply
    250,842.69x = 346,169.70 × 141,939
  4. Step 4: Simplify right side
    250,842.69x = 49,134,981,048.30
  5. Step 5: Solve for x
    x = 49,134,981,048.30/250,842.69
  6. Step 6: Final answer
    x = 195,879.66

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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.