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Finding the Fourth Proportional to 111,208.60, 166,812.90 and 49,000.60

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Solution

The fourth proportional to 111,208.60, 166,812.90 and 49,000.60 is: 73,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,208.60 : 166,812.90 = 49,000.60 : x
  2. Step 2: Convert to fraction form
    111,208.60/166,812.90 = 49,000.60/x
  3. Step 3: Cross multiply
    111,208.60x = 166,812.90 × 49,000.60
  4. Step 4: Simplify right side
    111,208.60x = 8,173,932,187.74
  5. Step 5: Solve for x
    x = 8,173,932,187.74/111,208.60
  6. Step 6: Final answer
    x = 73,500.90

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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.