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Finding the Fourth Proportional to 79,496.58, 109,707.30 and 43,687.50

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Solution

The fourth proportional to 79,496.58, 109,707.30 and 43,687.50 is: 60,289.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,496.58 : 109,707.30 = 43,687.50 : x
  2. Step 2: Convert to fraction form
    79,496.58/109,707.30 = 43,687.50/x
  3. Step 3: Cross multiply
    79,496.58x = 109,707.30 × 43,687.50
  4. Step 4: Simplify right side
    79,496.58x = 4,792,837,668.75
  5. Step 5: Solve for x
    x = 4,792,837,668.75/79,496.58
  6. Step 6: Final answer
    x = 60,289.86

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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.