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Finding the Fourth Proportional to 79,561.69, 109,795.15 and 43,750.94

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Solution

The fourth proportional to 79,561.69, 109,795.15 and 43,750.94 is: 60,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,561.69 : 109,795.15 = 43,750.94 : x
  2. Step 2: Convert to fraction form
    79,561.69/109,795.15 = 43,750.94/x
  3. Step 3: Cross multiply
    79,561.69x = 109,795.15 × 43,750.94
  4. Step 4: Simplify right side
    79,561.69x = 4,803,640,279.55
  5. Step 5: Solve for x
    x = 4,803,640,279.55/79,561.69
  6. Step 6: Final answer
    x = 60,376.30

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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.