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Finding the Fourth Proportional to 216,606.60, 324,794.70 and 91,806.60

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Solution

The fourth proportional to 216,606.60, 324,794.70 and 91,806.60 is: 137,661.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,606.60 : 324,794.70 = 91,806.60 : x
  2. Step 2: Convert to fraction form
    216,606.60/324,794.70 = 91,806.60/x
  3. Step 3: Cross multiply
    216,606.60x = 324,794.70 × 91,806.60
  4. Step 4: Simplify right side
    216,606.60x = 29,818,297,105.02
  5. Step 5: Solve for x
    x = 29,818,297,105.02/216,606.60
  6. Step 6: Final answer
    x = 137,661.07

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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.