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Finding the Fourth Proportional to 73,896.75, 101,980.04 and 40,364.91

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Solution

The fourth proportional to 73,896.75, 101,980.04 and 40,364.91 is: 55,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,896.75 : 101,980.04 = 40,364.91 : x
  2. Step 2: Convert to fraction form
    73,896.75/101,980.04 = 40,364.91/x
  3. Step 3: Cross multiply
    73,896.75x = 101,980.04 × 40,364.91
  4. Step 4: Simplify right side
    73,896.75x = 4,116,414,934.57
  5. Step 5: Solve for x
    x = 4,116,414,934.57/73,896.75
  6. Step 6: Final answer
    x = 55,704.95

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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.