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Finding the Fourth Proportional to 170,137.01, 255,243.65 and 51,817.61

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Solution

The fourth proportional to 170,137.01, 255,243.65 and 51,817.61 is: 77,738.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,137.01 : 255,243.65 = 51,817.61 : x
  2. Step 2: Convert to fraction form
    170,137.01/255,243.65 = 51,817.61/x
  3. Step 3: Cross multiply
    170,137.01x = 255,243.65 × 51,817.61
  4. Step 4: Simplify right side
    170,137.01x = 13,226,114,375.37
  5. Step 5: Solve for x
    x = 13,226,114,375.37/170,137.01
  6. Step 6: Final answer
    x = 77,738.02

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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.