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Finding the Fourth Proportional to 79,703.67, 109,990.24 and 43,892.92

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Solution

The fourth proportional to 79,703.67, 109,990.24 and 43,892.92 is: 60,571.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,703.67 : 109,990.24 = 43,892.92 : x
  2. Step 2: Convert to fraction form
    79,703.67/109,990.24 = 43,892.92/x
  3. Step 3: Cross multiply
    79,703.67x = 109,990.24 × 43,892.92
  4. Step 4: Simplify right side
    79,703.67x = 4,827,792,420.39
  5. Step 5: Solve for x
    x = 4,827,792,420.39/79,703.67
  6. Step 6: Final answer
    x = 60,571.77

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1.5x scale

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.