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Finding the Fourth Proportional to 170,617.89, 255,976.02 and 52,306.68

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Solution

The fourth proportional to 170,617.89, 255,976.02 and 52,306.68 is: 78,475.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,617.89 : 255,976.02 = 52,306.68 : x
  2. Step 2: Convert to fraction form
    170,617.89/255,976.02 = 52,306.68/x
  3. Step 3: Cross multiply
    170,617.89x = 255,976.02 × 52,306.68
  4. Step 4: Simplify right side
    170,617.89x = 13,389,255,765.81
  5. Step 5: Solve for x
    x = 13,389,255,765.81/170,617.89
  6. Step 6: Final answer
    x = 78,475.10

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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.