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Finding the Fourth Proportional to 169,433.56, 254,107.68 and 69,621.32

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Solution

The fourth proportional to 169,433.56, 254,107.68 and 69,621.32 is: 104,414.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,433.56 : 254,107.68 = 69,621.32 : x
  2. Step 2: Convert to fraction form
    169,433.56/254,107.68 = 69,621.32/x
  3. Step 3: Cross multiply
    169,433.56x = 254,107.68 × 69,621.32
  4. Step 4: Simplify right side
    169,433.56x = 17,691,312,103.74
  5. Step 5: Solve for x
    x = 17,691,312,103.74/169,433.56
  6. Step 6: Final answer
    x = 104,414.45

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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.