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Finding the Fourth Proportional to 250,188.38, 375,321.45 and 84,015.26

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Solution

The fourth proportional to 250,188.38, 375,321.45 and 84,015.26 is: 126,035.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,188.38 : 375,321.45 = 84,015.26 : x
  2. Step 2: Convert to fraction form
    250,188.38/375,321.45 = 84,015.26/x
  3. Step 3: Cross multiply
    250,188.38x = 375,321.45 × 84,015.26
  4. Step 4: Simplify right side
    250,188.38x = 31,532,727,328.72
  5. Step 5: Solve for x
    x = 31,532,727,328.72/250,188.38
  6. Step 6: Final answer
    x = 126,035.94

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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.