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Finding the Fourth Proportional to 170,964.60, 256,446.90 and 52,672.20

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Solution

The fourth proportional to 170,964.60, 256,446.90 and 52,672.20 is: 79,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,964.60 : 256,446.90 = 52,672.20 : x
  2. Step 2: Convert to fraction form
    170,964.60/256,446.90 = 52,672.20/x
  3. Step 3: Cross multiply
    170,964.60x = 256,446.90 × 52,672.20
  4. Step 4: Simplify right side
    170,964.60x = 13,507,622,406.18
  5. Step 5: Solve for x
    x = 13,507,622,406.18/170,964.60
  6. Step 6: Final answer
    x = 79,008.30

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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.