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Finding the Fourth Proportional to 73,537.70, 109,474.95 and 73,100.30

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Solution

The fourth proportional to 73,537.70, 109,474.95 and 73,100.30 is: 108,823.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,537.70 : 109,474.95 = 73,100.30 : x
  2. Step 2: Convert to fraction form
    73,537.70/109,474.95 = 73,100.30/x
  3. Step 3: Cross multiply
    73,537.70x = 109,474.95 × 73,100.30
  4. Step 4: Simplify right side
    73,537.70x = 8,002,651,321.98
  5. Step 5: Solve for x
    x = 8,002,651,321.98/73,537.70
  6. Step 6: Final answer
    x = 108,823.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.