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Finding the Fourth Proportional to 149,205.20, 223,930.20 and 148,038.80

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Solution

The fourth proportional to 149,205.20, 223,930.20 and 148,038.80 is: 222,179.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,205.20 : 223,930.20 = 148,038.80 : x
  2. Step 2: Convert to fraction form
    149,205.20/223,930.20 = 148,038.80/x
  3. Step 3: Cross multiply
    149,205.20x = 223,930.20 × 148,038.80
  4. Step 4: Simplify right side
    149,205.20x = 33,150,358,091.76
  5. Step 5: Solve for x
    x = 33,150,358,091.76/149,205.20
  6. Step 6: Final answer
    x = 222,179.64

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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.