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Finding the Fourth Proportional to 79,341.75, 109,491.75 and 43,532.01

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Solution

The fourth proportional to 79,341.75, 109,491.75 and 43,532.01 is: 60,074.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,341.75 : 109,491.75 = 43,532.01 : x
  2. Step 2: Convert to fraction form
    79,341.75/109,491.75 = 43,532.01/x
  3. Step 3: Cross multiply
    79,341.75x = 109,491.75 × 43,532.01
  4. Step 4: Simplify right side
    79,341.75x = 4,766,395,955.92
  5. Step 5: Solve for x
    x = 4,766,395,955.92/79,341.75
  6. Step 6: Final answer
    x = 60,074.25

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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.