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Finding the Fourth Proportional to 169,540.90, 254,311.35 and 51,199.90

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Solution

The fourth proportional to 169,540.90, 254,311.35 and 51,199.90 is: 76,799.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,540.90 : 254,311.35 = 51,199.90 : x
  2. Step 2: Convert to fraction form
    169,540.90/254,311.35 = 51,199.90/x
  3. Step 3: Cross multiply
    169,540.90x = 254,311.35 × 51,199.90
  4. Step 4: Simplify right side
    169,540.90x = 13,020,715,688.87
  5. Step 5: Solve for x
    x = 13,020,715,688.87/169,540.90
  6. Step 6: Final answer
    x = 76,799.85

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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.