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Finding the Fourth Proportional to 170,041.70, 255,062.55 and 143,797.70

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Solution

The fourth proportional to 170,041.70, 255,062.55 and 143,797.70 is: 215,696.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,041.70 : 255,062.55 = 143,797.70 : x
  2. Step 2: Convert to fraction form
    170,041.70/255,062.55 = 143,797.70/x
  3. Step 3: Cross multiply
    170,041.70x = 255,062.55 × 143,797.70
  4. Step 4: Simplify right side
    170,041.70x = 36,677,408,046.14
  5. Step 5: Solve for x
    x = 36,677,408,046.14/170,041.70
  6. Step 6: Final answer
    x = 215,696.55

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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.