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Finding the Fourth Proportional to 111,261.70, 166,860.15 and 61,365.70

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Solution

The fourth proportional to 111,261.70, 166,860.15 and 61,365.70 is: 92,030.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,261.70 : 166,860.15 = 61,365.70 : x
  2. Step 2: Convert to fraction form
    111,261.70/166,860.15 = 61,365.70/x
  3. Step 3: Cross multiply
    111,261.70x = 166,860.15 × 61,365.70
  4. Step 4: Simplify right side
    111,261.70x = 10,239,489,906.86
  5. Step 5: Solve for x
    x = 10,239,489,906.86/111,261.70
  6. Step 6: Final answer
    x = 92,030.68

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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.