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Finding the Fourth Proportional to 169,410.72, 254,116.08 and 69,553.92

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Solution

The fourth proportional to 169,410.72, 254,116.08 and 69,553.92 is: 104,330.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,410.72 : 254,116.08 = 69,553.92 : x
  2. Step 2: Convert to fraction form
    169,410.72/254,116.08 = 69,553.92/x
  3. Step 3: Cross multiply
    169,410.72x = 254,116.08 × 69,553.92
  4. Step 4: Simplify right side
    169,410.72x = 17,674,769,499.03
  5. Step 5: Solve for x
    x = 17,674,769,499.03/169,410.72
  6. Step 6: Final answer
    x = 104,330.88

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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.