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Finding the Fourth Proportional to 170,620.24, 255,945.72 and 45,958.48

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Solution

The fourth proportional to 170,620.24, 255,945.72 and 45,958.48 is: 68,941.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,620.24 : 255,945.72 = 45,958.48 : x
  2. Step 2: Convert to fraction form
    170,620.24/255,945.72 = 45,958.48/x
  3. Step 3: Cross multiply
    170,620.24x = 255,945.72 × 45,958.48
  4. Step 4: Simplify right side
    170,620.24x = 11,762,876,253.71
  5. Step 5: Solve for x
    x = 11,762,876,253.71/170,620.24
  6. Step 6: Final answer
    x = 68,941.86

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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.