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Finding the Fourth Proportional to 424,069.93, 636,103.62 and 171,347.44

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Solution

The fourth proportional to 424,069.93, 636,103.62 and 171,347.44 is: 257,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,069.93 : 636,103.62 = 171,347.44 : x
  2. Step 2: Convert to fraction form
    424,069.93/636,103.62 = 171,347.44/x
  3. Step 3: Cross multiply
    424,069.93x = 636,103.62 × 171,347.44
  4. Step 4: Simplify right side
    424,069.93x = 108,994,726,861.73
  5. Step 5: Solve for x
    x = 108,994,726,861.73/424,069.93
  6. Step 6: Final answer
    x = 257,020.64

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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.