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Finding the Fourth Proportional to 465,553.45, 697,953.31 and 145,540.56

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Solution

The fourth proportional to 465,553.45, 697,953.31 and 145,540.56 is: 218,193.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,553.45 : 697,953.31 = 145,540.56 : x
  2. Step 2: Convert to fraction form
    465,553.45/697,953.31 = 145,540.56/x
  3. Step 3: Cross multiply
    465,553.45x = 697,953.31 × 145,540.56
  4. Step 4: Simplify right side
    465,553.45x = 101,580,514,863.55
  5. Step 5: Solve for x
    x = 101,580,514,863.55/465,553.45
  6. Step 6: Final answer
    x = 218,193.03

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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.