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Finding the Fourth Proportional to 79,558.70, 109,790.99 and 43,751.03

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Solution

The fourth proportional to 79,558.70, 109,790.99 and 43,751.03 is: 60,376.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,558.70 : 109,790.99 = 43,751.03 : x
  2. Step 2: Convert to fraction form
    79,558.70/109,790.99 = 43,751.03/x
  3. Step 3: Cross multiply
    79,558.70x = 109,790.99 × 43,751.03
  4. Step 4: Simplify right side
    79,558.70x = 4,803,468,129.51
  5. Step 5: Solve for x
    x = 4,803,468,129.51/79,558.70
  6. Step 6: Final answer
    x = 60,376.41

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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.