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Finding the Fourth Proportional to 79,561.49, 109,795.64 and 43,751.75

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Solution

The fourth proportional to 79,561.49, 109,795.64 and 43,751.75 is: 60,377.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,561.49 : 109,795.64 = 43,751.75 : x
  2. Step 2: Convert to fraction form
    79,561.49/109,795.64 = 43,751.75/x
  3. Step 3: Cross multiply
    79,561.49x = 109,795.64 × 43,751.75
  4. Step 4: Simplify right side
    79,561.49x = 4,803,750,624.63
  5. Step 5: Solve for x
    x = 4,803,750,624.63/79,561.49
  6. Step 6: Final answer
    x = 60,377.84

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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.