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Finding the Fourth Proportional to 519,879.92, 779,894.18 and 160,081.16

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Solution

The fourth proportional to 519,879.92, 779,894.18 and 160,081.16 is: 240,144.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,879.92 : 779,894.18 = 160,081.16 : x
  2. Step 2: Convert to fraction form
    519,879.92/779,894.18 = 160,081.16/x
  3. Step 3: Cross multiply
    519,879.92x = 779,894.18 × 160,081.16
  4. Step 4: Simplify right side
    519,879.92x = 124,846,365,011.65
  5. Step 5: Solve for x
    x = 124,846,365,011.65/519,879.92
  6. Step 6: Final answer
    x = 240,144.62

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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.