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Finding the Fourth Proportional to 111,628.60, 167,447.78 and 55,495.60

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Solution

The fourth proportional to 111,628.60, 167,447.78 and 55,495.60 is: 83,245.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,628.60 : 167,447.78 = 55,495.60 : x
  2. Step 2: Convert to fraction form
    111,628.60/167,447.78 = 55,495.60/x
  3. Step 3: Cross multiply
    111,628.60x = 167,447.78 × 55,495.60
  4. Step 4: Simplify right side
    111,628.60x = 9,292,615,019.77
  5. Step 5: Solve for x
    x = 9,292,615,019.77/111,628.60
  6. Step 6: Final answer
    x = 83,245.83

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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.