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Finding the Fourth Proportional to 170,844.20, 256,266.30 and 162,679.40

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Solution

The fourth proportional to 170,844.20, 256,266.30 and 162,679.40 is: 244,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,844.20 : 256,266.30 = 162,679.40 : x
  2. Step 2: Convert to fraction form
    170,844.20/256,266.30 = 162,679.40/x
  3. Step 3: Cross multiply
    170,844.20x = 256,266.30 × 162,679.40
  4. Step 4: Simplify right side
    170,844.20x = 41,689,247,924.22
  5. Step 5: Solve for x
    x = 41,689,247,924.22/170,844.20
  6. Step 6: Final answer
    x = 244,019.10

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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.