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Finding the Fourth Proportional to 263,099.58, 394,615.17 and 105,329.58

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Solution

The fourth proportional to 263,099.58, 394,615.17 and 105,329.58 is: 157,980.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,099.58 : 394,615.17 = 105,329.58 : x
  2. Step 2: Convert to fraction form
    263,099.58/394,615.17 = 105,329.58/x
  3. Step 3: Cross multiply
    263,099.58x = 394,615.17 × 105,329.58
  4. Step 4: Simplify right side
    263,099.58x = 41,564,650,117.73
  5. Step 5: Solve for x
    x = 41,564,650,117.73/263,099.58
  6. Step 6: Final answer
    x = 157,980.68

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1.5x scale

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.