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Finding the Fourth Proportional to 92,183.74, 138,322.99 and 79,783.45

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Solution

The fourth proportional to 92,183.74, 138,322.99 and 79,783.45 is: 119,716.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,183.74 : 138,322.99 = 79,783.45 : x
  2. Step 2: Convert to fraction form
    92,183.74/138,322.99 = 79,783.45/x
  3. Step 3: Cross multiply
    92,183.74x = 138,322.99 × 79,783.45
  4. Step 4: Simplify right side
    92,183.74x = 11,035,885,110.44
  5. Step 5: Solve for x
    x = 11,035,885,110.44/92,183.74
  6. Step 6: Final answer
    x = 119,716.18

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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.