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Finding the Fourth Proportional to 347,777.20, 521,536.20 and 242,282.80

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Solution

The fourth proportional to 347,777.20, 521,536.20 and 242,282.80 is: 363,333.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,777.20 : 521,536.20 = 242,282.80 : x
  2. Step 2: Convert to fraction form
    347,777.20/521,536.20 = 242,282.80/x
  3. Step 3: Cross multiply
    347,777.20x = 521,536.20 × 242,282.80
  4. Step 4: Simplify right side
    347,777.20x = 126,359,250,837.36
  5. Step 5: Solve for x
    x = 126,359,250,837.36/347,777.20
  6. Step 6: Final answer
    x = 363,333.91

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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.