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Finding the Fourth Proportional to 250,936.86, 375,913.20 and 145,534.44

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Solution

The fourth proportional to 250,936.86, 375,913.20 and 145,534.44 is: 218,016.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,936.86 : 375,913.20 = 145,534.44 : x
  2. Step 2: Convert to fraction form
    250,936.86/375,913.20 = 145,534.44/x
  3. Step 3: Cross multiply
    250,936.86x = 375,913.20 × 145,534.44
  4. Step 4: Simplify right side
    250,936.86x = 54,708,317,050.61
  5. Step 5: Solve for x
    x = 54,708,317,050.61/250,936.86
  6. Step 6: Final answer
    x = 218,016.27

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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.