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Finding the Fourth Proportional to 149,161.79, 223,735.39 and 55,660.25

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Solution

The fourth proportional to 149,161.79, 223,735.39 and 55,660.25 is: 83,487.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,161.79 : 223,735.39 = 55,660.25 : x
  2. Step 2: Convert to fraction form
    149,161.79/223,735.39 = 55,660.25/x
  3. Step 3: Cross multiply
    149,161.79x = 223,735.39 × 55,660.25
  4. Step 4: Simplify right side
    149,161.79x = 12,453,167,741.25
  5. Step 5: Solve for x
    x = 12,453,167,741.25/149,161.79
  6. Step 6: Final answer
    x = 83,487.65

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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.