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Finding the Fourth Proportional to 79,246.62, 109,361.70 and 43,434.36

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Solution

The fourth proportional to 79,246.62, 109,361.70 and 43,434.36 is: 59,940.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,246.62 : 109,361.70 = 43,434.36 : x
  2. Step 2: Convert to fraction form
    79,246.62/109,361.70 = 43,434.36/x
  3. Step 3: Cross multiply
    79,246.62x = 109,361.70 × 43,434.36
  4. Step 4: Simplify right side
    79,246.62x = 4,750,055,448.01
  5. Step 5: Solve for x
    x = 4,750,055,448.01/79,246.62
  6. Step 6: Final answer
    x = 59,940.16

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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.