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Finding the Fourth Proportional to 250,276.94, 375,470.76 and 137,899.31

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Solution

The fourth proportional to 250,276.94, 375,470.76 and 137,899.31 is: 206,879.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,276.94 : 375,470.76 = 137,899.31 : x
  2. Step 2: Convert to fraction form
    250,276.94/375,470.76 = 137,899.31/x
  3. Step 3: Cross multiply
    250,276.94x = 375,470.76 × 137,899.31
  4. Step 4: Simplify right side
    250,276.94x = 51,777,156,851.82
  5. Step 5: Solve for x
    x = 51,777,156,851.82/250,276.94
  6. Step 6: Final answer
    x = 206,879.46

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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.