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Finding the Fourth Proportional to 109,482.56, 164,145.02 and 67,275.44

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Solution

The fourth proportional to 109,482.56, 164,145.02 and 67,275.44 is: 100,864.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,482.56 : 164,145.02 = 67,275.44 : x
  2. Step 2: Convert to fraction form
    109,482.56/164,145.02 = 67,275.44/x
  3. Step 3: Cross multiply
    109,482.56x = 164,145.02 × 67,275.44
  4. Step 4: Simplify right side
    109,482.56x = 11,042,928,444.31
  5. Step 5: Solve for x
    x = 11,042,928,444.31/109,482.56
  6. Step 6: Final answer
    x = 100,864.73

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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.