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Finding the Fourth Proportional to 192,451.44, 288,677.87 and 66,128.10

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Solution

The fourth proportional to 192,451.44, 288,677.87 and 66,128.10 is: 99,192.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,451.44 : 288,677.87 = 66,128.10 : x
  2. Step 2: Convert to fraction form
    192,451.44/288,677.87 = 66,128.10/x
  3. Step 3: Cross multiply
    192,451.44x = 288,677.87 × 66,128.10
  4. Step 4: Simplify right side
    192,451.44x = 19,089,718,261.92
  5. Step 5: Solve for x
    x = 19,089,718,261.92/192,451.44
  6. Step 6: Final answer
    x = 99,192.39

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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.