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Finding the Fourth Proportional to 111,861.60, 167,619.60 and 97,000.80

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Solution

The fourth proportional to 111,861.60, 167,619.60 and 97,000.80 is: 145,351.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,861.60 : 167,619.60 = 97,000.80 : x
  2. Step 2: Convert to fraction form
    111,861.60/167,619.60 = 97,000.80/x
  3. Step 3: Cross multiply
    111,861.60x = 167,619.60 × 97,000.80
  4. Step 4: Simplify right side
    111,861.60x = 16,259,235,295.68
  5. Step 5: Solve for x
    x = 16,259,235,295.68/111,861.60
  6. Step 6: Final answer
    x = 145,351.36

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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.