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Finding the Fourth Proportional to 70,024.87, 105,084.02 and 36,321.99

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Solution

The fourth proportional to 70,024.87, 105,084.02 and 36,321.99 is: 54,507.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,024.87 : 105,084.02 = 36,321.99 : x
  2. Step 2: Convert to fraction form
    70,024.87/105,084.02 = 36,321.99/x
  3. Step 3: Cross multiply
    70,024.87x = 105,084.02 × 36,321.99
  4. Step 4: Simplify right side
    70,024.87x = 3,816,860,723.60
  5. Step 5: Solve for x
    x = 3,816,860,723.60/70,024.87
  6. Step 6: Final answer
    x = 54,507.22

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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.