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Finding the Fourth Proportional to 190,452.45, 285,698.13 and 65,777.25

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Solution

The fourth proportional to 190,452.45, 285,698.13 and 65,777.25 is: 98,672.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,452.45 : 285,698.13 = 65,777.25 : x
  2. Step 2: Convert to fraction form
    190,452.45/285,698.13 = 65,777.25/x
  3. Step 3: Cross multiply
    190,452.45x = 285,698.13 × 65,777.25
  4. Step 4: Simplify right side
    190,452.45x = 18,792,437,321.54
  5. Step 5: Solve for x
    x = 18,792,437,321.54/190,452.45
  6. Step 6: Final answer
    x = 98,672.59

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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.