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Finding the Fourth Proportional to 79,497.92, 109,705.89 and 43,687.16

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Solution

The fourth proportional to 79,497.92, 109,705.89 and 43,687.16 is: 60,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,497.92 : 109,705.89 = 43,687.16 : x
  2. Step 2: Convert to fraction form
    79,497.92/109,705.89 = 43,687.16/x
  3. Step 3: Cross multiply
    79,497.92x = 109,705.89 × 43,687.16
  4. Step 4: Simplify right side
    79,497.92x = 4,792,739,043.64
  5. Step 5: Solve for x
    x = 4,792,739,043.64/79,497.92
  6. Step 6: Final answer
    x = 60,287.60

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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.