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Finding the Fourth Proportional to 190,422.93, 285,658.97 and 64,008.66

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Solution

The fourth proportional to 190,422.93, 285,658.97 and 64,008.66 is: 96,021.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,422.93 : 285,658.97 = 64,008.66 : x
  2. Step 2: Convert to fraction form
    190,422.93/285,658.97 = 64,008.66/x
  3. Step 3: Cross multiply
    190,422.93x = 285,658.97 × 64,008.66
  4. Step 4: Simplify right side
    190,422.93x = 18,284,647,566.64
  5. Step 5: Solve for x
    x = 18,284,647,566.64/190,422.93
  6. Step 6: Final answer
    x = 96,021.25

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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.