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Finding the Fourth Proportional to 169,808.56, 254,362.80 and 99,474.64

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Solution

The fourth proportional to 169,808.56, 254,362.80 and 99,474.64 is: 149,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,808.56 : 254,362.80 = 99,474.64 : x
  2. Step 2: Convert to fraction form
    169,808.56/254,362.80 = 99,474.64/x
  3. Step 3: Cross multiply
    169,808.56x = 254,362.80 × 99,474.64
  4. Step 4: Simplify right side
    169,808.56x = 25,302,647,959.39
  5. Step 5: Solve for x
    x = 25,302,647,959.39/169,808.56
  6. Step 6: Final answer
    x = 149,006.90

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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.