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Finding the Fourth Proportional to 169,956.80, 254,705.56 and 64,718.36

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Solution

The fourth proportional to 169,956.80, 254,705.56 and 64,718.36 is: 96,990.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,956.80 : 254,705.56 = 64,718.36 : x
  2. Step 2: Convert to fraction form
    169,956.80/254,705.56 = 64,718.36/x
  3. Step 3: Cross multiply
    169,956.80x = 254,705.56 × 64,718.36
  4. Step 4: Simplify right side
    169,956.80x = 16,484,126,126.08
  5. Step 5: Solve for x
    x = 16,484,126,126.08/169,956.80
  6. Step 6: Final answer
    x = 96,990.09

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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.