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Finding the Fourth Proportional to 73,106.10, 109,583.55 and 39,755.70

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Solution

The fourth proportional to 73,106.10, 109,583.55 and 39,755.70 is: 59,592.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,106.10 : 109,583.55 = 39,755.70 : x
  2. Step 2: Convert to fraction form
    73,106.10/109,583.55 = 39,755.70/x
  3. Step 3: Cross multiply
    73,106.10x = 109,583.55 × 39,755.70
  4. Step 4: Simplify right side
    73,106.10x = 4,356,570,738.74
  5. Step 5: Solve for x
    x = 4,356,570,738.74/73,106.10
  6. Step 6: Final answer
    x = 59,592.44

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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.