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Finding the Fourth Proportional to 111,400.74, 166,906.62 and 92,800.26

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Solution

The fourth proportional to 111,400.74, 166,906.62 and 92,800.26 is: 139,038.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,400.74 : 166,906.62 = 92,800.26 : x
  2. Step 2: Convert to fraction form
    111,400.74/166,906.62 = 92,800.26/x
  3. Step 3: Cross multiply
    111,400.74x = 166,906.62 × 92,800.26
  4. Step 4: Simplify right side
    111,400.74x = 15,488,977,731.72
  5. Step 5: Solve for x
    x = 15,488,977,731.72/111,400.74
  6. Step 6: Final answer
    x = 139,038.37

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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.