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Finding the Fourth Proportional to 79,493.56, 109,700.92 and 45,502.16

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Solution

The fourth proportional to 79,493.56, 109,700.92 and 45,502.16 is: 62,792.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,493.56 : 109,700.92 = 45,502.16 : x
  2. Step 2: Convert to fraction form
    79,493.56/109,700.92 = 45,502.16/x
  3. Step 3: Cross multiply
    79,493.56x = 109,700.92 × 45,502.16
  4. Step 4: Simplify right side
    79,493.56x = 4,991,628,813.99
  5. Step 5: Solve for x
    x = 4,991,628,813.99/79,493.56
  6. Step 6: Final answer
    x = 62,792.87

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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.