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Finding the Fourth Proportional to 147,920.52, 204,130.42 and 80,852.52

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Solution

The fourth proportional to 147,920.52, 204,130.42 and 80,852.52 is: 111,576.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,920.52 : 204,130.42 = 80,852.52 : x
  2. Step 2: Convert to fraction form
    147,920.52/204,130.42 = 80,852.52/x
  3. Step 3: Cross multiply
    147,920.52x = 204,130.42 × 80,852.52
  4. Step 4: Simplify right side
    147,920.52x = 16,504,458,865.66
  5. Step 5: Solve for x
    x = 16,504,458,865.66/147,920.52
  6. Step 6: Final answer
    x = 111,576.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.