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Finding the Fourth Proportional to 262,918.90, 394,553.04 and 96,706.90

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Solution

The fourth proportional to 262,918.90, 394,553.04 and 96,706.90 is: 145,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,918.90 : 394,553.04 = 96,706.90 : x
  2. Step 2: Convert to fraction form
    262,918.90/394,553.04 = 96,706.90/x
  3. Step 3: Cross multiply
    262,918.90x = 394,553.04 × 96,706.90
  4. Step 4: Simplify right side
    262,918.90x = 38,156,001,383.98
  5. Step 5: Solve for x
    x = 38,156,001,383.98/262,918.90
  6. Step 6: Final answer
    x = 145,124.60

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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.