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Finding the Fourth Proportional to 174,665.80, 261,825.90 and 85,846.60

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Solution

The fourth proportional to 174,665.80, 261,825.90 and 85,846.60 is: 128,684.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,665.80 : 261,825.90 = 85,846.60 : x
  2. Step 2: Convert to fraction form
    174,665.80/261,825.90 = 85,846.60/x
  3. Step 3: Cross multiply
    174,665.80x = 261,825.90 × 85,846.60
  4. Step 4: Simplify right side
    174,665.80x = 22,476,863,306.94
  5. Step 5: Solve for x
    x = 22,476,863,306.94/174,665.80
  6. Step 6: Final answer
    x = 128,684.97

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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.