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Finding the Fourth Proportional to 192,561.60, 288,891.06 and 155,458.80

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Solution

The fourth proportional to 192,561.60, 288,891.06 and 155,458.80 is: 233,227.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,561.60 : 288,891.06 = 155,458.80 : x
  2. Step 2: Convert to fraction form
    192,561.60/288,891.06 = 155,458.80/x
  3. Step 3: Cross multiply
    192,561.60x = 288,891.06 × 155,458.80
  4. Step 4: Simplify right side
    192,561.60x = 44,910,657,518.33
  5. Step 5: Solve for x
    x = 44,910,657,518.33/192,561.60
  6. Step 6: Final answer
    x = 233,227.48

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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.