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Finding the Fourth Proportional to 79,770.98, 119,684.03 and 35,428.79

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Solution

The fourth proportional to 79,770.98, 119,684.03 and 35,428.79 is: 53,155.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,770.98 : 119,684.03 = 35,428.79 : x
  2. Step 2: Convert to fraction form
    79,770.98/119,684.03 = 35,428.79/x
  3. Step 3: Cross multiply
    79,770.98x = 119,684.03 × 35,428.79
  4. Step 4: Simplify right side
    79,770.98x = 4,240,260,686.58
  5. Step 5: Solve for x
    x = 4,240,260,686.58/79,770.98
  6. Step 6: Final answer
    x = 53,155.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.