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Finding the Fourth Proportional to 170,218.80, 255,324.48 and 45,559.80

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Solution

The fourth proportional to 170,218.80, 255,324.48 and 45,559.80 is: 68,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,218.80 : 255,324.48 = 45,559.80 : x
  2. Step 2: Convert to fraction form
    170,218.80/255,324.48 = 45,559.80/x
  3. Step 3: Cross multiply
    170,218.80x = 255,324.48 × 45,559.80
  4. Step 4: Simplify right side
    170,218.80x = 11,632,532,243.90
  5. Step 5: Solve for x
    x = 11,632,532,243.90/170,218.80
  6. Step 6: Final answer
    x = 68,338.70

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1.5x scale

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.