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Finding the Fourth Proportional to 73,381.35, 110,072.03 and 72,943.95

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Solution

The fourth proportional to 73,381.35, 110,072.03 and 72,943.95 is: 109,415.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,381.35 : 110,072.03 = 72,943.95 : x
  2. Step 2: Convert to fraction form
    73,381.35/110,072.03 = 72,943.95/x
  3. Step 3: Cross multiply
    73,381.35x = 110,072.03 × 72,943.95
  4. Step 4: Simplify right side
    73,381.35x = 8,029,088,288.00
  5. Step 5: Solve for x
    x = 8,029,088,288.00/73,381.35
  6. Step 6: Final answer
    x = 109,415.93

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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.