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Finding the Fourth Proportional to 169,438.40, 254,449.20 and 164,189.60

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Solution

The fourth proportional to 169,438.40, 254,449.20 and 164,189.60 is: 246,566.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,438.40 : 254,449.20 = 164,189.60 : x
  2. Step 2: Convert to fraction form
    169,438.40/254,449.20 = 164,189.60/x
  3. Step 3: Cross multiply
    169,438.40x = 254,449.20 × 164,189.60
  4. Step 4: Simplify right side
    169,438.40x = 41,777,912,368.32
  5. Step 5: Solve for x
    x = 41,777,912,368.32/169,438.40
  6. Step 6: Final answer
    x = 246,566.97

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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.