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Finding the Fourth Proportional to 111,060.90, 166,605.12 and 36,188.64

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Solution

The fourth proportional to 111,060.90, 166,605.12 and 36,188.64 is: 54,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,060.90 : 166,605.12 = 36,188.64 : x
  2. Step 2: Convert to fraction form
    111,060.90/166,605.12 = 36,188.64/x
  3. Step 3: Cross multiply
    111,060.90x = 166,605.12 × 36,188.64
  4. Step 4: Simplify right side
    111,060.90x = 6,029,212,709.84
  5. Step 5: Solve for x
    x = 6,029,212,709.84/111,060.90
  6. Step 6: Final answer
    x = 54,287.45

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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.