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Finding the Fourth Proportional to 74,773.41, 103,198.50 and 47,946.21

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Solution

The fourth proportional to 74,773.41, 103,198.50 and 47,946.21 is: 66,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,773.41 : 103,198.50 = 47,946.21 : x
  2. Step 2: Convert to fraction form
    74,773.41/103,198.50 = 47,946.21/x
  3. Step 3: Cross multiply
    74,773.41x = 103,198.50 × 47,946.21
  4. Step 4: Simplify right side
    74,773.41x = 4,947,976,952.69
  5. Step 5: Solve for x
    x = 4,947,976,952.69/74,773.41
  6. Step 6: Final answer
    x = 66,172.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.