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Finding the Fourth Proportional to 73,255.70, 101,079.68 and 40,990.98

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Solution

The fourth proportional to 73,255.70, 101,079.68 and 40,990.98 is: 56,560.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,255.70 : 101,079.68 = 40,990.98 : x
  2. Step 2: Convert to fraction form
    73,255.70/101,079.68 = 40,990.98/x
  3. Step 3: Cross multiply
    73,255.70x = 101,079.68 × 40,990.98
  4. Step 4: Simplify right side
    73,255.70x = 4,143,355,141.29
  5. Step 5: Solve for x
    x = 4,143,355,141.29/73,255.70
  6. Step 6: Final answer
    x = 56,560.17

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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.