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Finding the Fourth Proportional to 250,707.76, 376,120.06 and 138,360.96

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Solution

The fourth proportional to 250,707.76, 376,120.06 and 138,360.96 is: 207,573.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,707.76 : 376,120.06 = 138,360.96 : x
  2. Step 2: Convert to fraction form
    250,707.76/376,120.06 = 138,360.96/x
  3. Step 3: Cross multiply
    250,707.76x = 376,120.06 × 138,360.96
  4. Step 4: Simplify right side
    250,707.76x = 52,040,332,230.96
  5. Step 5: Solve for x
    x = 52,040,332,230.96/250,707.76
  6. Step 6: Final answer
    x = 207,573.68

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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.