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Finding the Fourth Proportional to 170,626.70, 255,830.70 and 70,855.76

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Solution

The fourth proportional to 170,626.70, 255,830.70 and 70,855.76 is: 106,238.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,626.70 : 255,830.70 = 70,855.76 : x
  2. Step 2: Convert to fraction form
    170,626.70/255,830.70 = 70,855.76/x
  3. Step 3: Cross multiply
    170,626.70x = 255,830.70 × 70,855.76
  4. Step 4: Simplify right side
    170,626.70x = 18,127,079,585.12
  5. Step 5: Solve for x
    x = 18,127,079,585.12/170,626.70
  6. Step 6: Final answer
    x = 106,238.23

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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.