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Finding the Fourth Proportional to 169,777.44, 254,692.53 and 51,420.60

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Solution

The fourth proportional to 169,777.44, 254,692.53 and 51,420.60 is: 77,138.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,777.44 : 254,692.53 = 51,420.60 : x
  2. Step 2: Convert to fraction form
    169,777.44/254,692.53 = 51,420.60/x
  3. Step 3: Cross multiply
    169,777.44x = 254,692.53 × 51,420.60
  4. Step 4: Simplify right side
    169,777.44x = 13,096,442,708.12
  5. Step 5: Solve for x
    x = 13,096,442,708.12/169,777.44
  6. Step 6: Final answer
    x = 77,138.89

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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.