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Finding the Fourth Proportional to 227,275.69, 340,911.28 and 87,034.32

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Solution

The fourth proportional to 227,275.69, 340,911.28 and 87,034.32 is: 130,550.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,275.69 : 340,911.28 = 87,034.32 : x
  2. Step 2: Convert to fraction form
    227,275.69/340,911.28 = 87,034.32/x
  3. Step 3: Cross multiply
    227,275.69x = 340,911.28 × 87,034.32
  4. Step 4: Simplify right side
    227,275.69x = 29,670,981,435.13
  5. Step 5: Solve for x
    x = 29,670,981,435.13/227,275.69
  6. Step 6: Final answer
    x = 130,550.62

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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.