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Finding the Fourth Proportional to 79,010.66, 109,107.88 and 50,765.96

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Solution

The fourth proportional to 79,010.66, 109,107.88 and 50,765.96 is: 70,104.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,010.66 : 109,107.88 = 50,765.96 : x
  2. Step 2: Convert to fraction form
    79,010.66/109,107.88 = 50,765.96/x
  3. Step 3: Cross multiply
    79,010.66x = 109,107.88 × 50,765.96
  4. Step 4: Simplify right side
    79,010.66x = 5,538,966,271.76
  5. Step 5: Solve for x
    x = 5,538,966,271.76/79,010.66
  6. Step 6: Final answer
    x = 70,104.04

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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.