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Finding the Fourth Proportional to 73,172.60, 100,994.49 and 44,486.20

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Solution

The fourth proportional to 73,172.60, 100,994.49 and 44,486.20 is: 61,400.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,172.60 : 100,994.49 = 44,486.20 : x
  2. Step 2: Convert to fraction form
    73,172.60/100,994.49 = 44,486.20/x
  3. Step 3: Cross multiply
    73,172.60x = 100,994.49 × 44,486.20
  4. Step 4: Simplify right side
    73,172.60x = 4,492,861,374.10
  5. Step 5: Solve for x
    x = 4,492,861,374.10/73,172.60
  6. Step 6: Final answer
    x = 61,400.87

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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.