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Finding the Fourth Proportional to 170,704.80, 256,057.20 and 117,560.70

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Solution

The fourth proportional to 170,704.80, 256,057.20 and 117,560.70 is: 176,341.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,704.80 : 256,057.20 = 117,560.70 : x
  2. Step 2: Convert to fraction form
    170,704.80/256,057.20 = 117,560.70/x
  3. Step 3: Cross multiply
    170,704.80x = 256,057.20 × 117,560.70
  4. Step 4: Simplify right side
    170,704.80x = 30,102,263,672.04
  5. Step 5: Solve for x
    x = 30,102,263,672.04/170,704.80
  6. Step 6: Final answer
    x = 176,341.05

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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.