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Finding the Fourth Proportional to 361,337.67, 541,415.21 and 218,750.76

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Solution

The fourth proportional to 361,337.67, 541,415.21 and 218,750.76 is: 327,768.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,337.67 : 541,415.21 = 218,750.76 : x
  2. Step 2: Convert to fraction form
    361,337.67/541,415.21 = 218,750.76/x
  3. Step 3: Cross multiply
    361,337.67x = 541,415.21 × 218,750.76
  4. Step 4: Simplify right side
    361,337.67x = 118,434,985,539.00
  5. Step 5: Solve for x
    x = 118,434,985,539.00/361,337.67
  6. Step 6: Final answer
    x = 327,768.17

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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.