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Finding the Fourth Proportional to 170,711.42, 255,922.52 and 70,809.26

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Solution

The fourth proportional to 170,711.42, 255,922.52 and 70,809.26 is: 106,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,711.42 : 255,922.52 = 70,809.26 : x
  2. Step 2: Convert to fraction form
    170,711.42/255,922.52 = 70,809.26/x
  3. Step 3: Cross multiply
    170,711.42x = 255,922.52 × 70,809.26
  4. Step 4: Simplify right side
    170,711.42x = 18,121,682,624.88
  5. Step 5: Solve for x
    x = 18,121,682,624.88/170,711.42
  6. Step 6: Final answer
    x = 106,153.90

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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.