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Finding the Fourth Proportional to 74,549, 111,755.46 and 68,056.04

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Solution

The fourth proportional to 74,549, 111,755.46 and 68,056.04 is: 102,021.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,549 : 111,755.46 = 68,056.04 : x
  2. Step 2: Convert to fraction form
    74,549/111,755.46 = 68,056.04/x
  3. Step 3: Cross multiply
    74,549x = 111,755.46 × 68,056.04
  4. Step 4: Simplify right side
    74,549x = 7,605,634,055.98
  5. Step 5: Solve for x
    x = 7,605,634,055.98/74,549
  6. Step 6: Final answer
    x = 102,021.95

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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.