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Finding the Fourth Proportional to 113,979.70, 170,969.55 and 50,799.70

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Solution

The fourth proportional to 113,979.70, 170,969.55 and 50,799.70 is: 76,199.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,979.70 : 170,969.55 = 50,799.70 : x
  2. Step 2: Convert to fraction form
    113,979.70/170,969.55 = 50,799.70/x
  3. Step 3: Cross multiply
    113,979.70x = 170,969.55 × 50,799.70
  4. Step 4: Simplify right side
    113,979.70x = 8,685,201,849.14
  5. Step 5: Solve for x
    x = 8,685,201,849.14/113,979.70
  6. Step 6: Final answer
    x = 76,199.55

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Similar ratio
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1.5x scale

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.