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Finding the Fourth Proportional to 170,073, 255,120.30 and 51,753.06

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Solution

The fourth proportional to 170,073, 255,120.30 and 51,753.06 is: 77,632.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,073 : 255,120.30 = 51,753.06 : x
  2. Step 2: Convert to fraction form
    170,073/255,120.30 = 51,753.06/x
  3. Step 3: Cross multiply
    170,073x = 255,120.30 × 51,753.06
  4. Step 4: Simplify right side
    170,073x = 13,203,256,193.12
  5. Step 5: Solve for x
    x = 13,203,256,193.12/170,073
  6. Step 6: Final answer
    x = 77,632.88

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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.