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Finding the Fourth Proportional to 146,820.40, 220,230.60 and 132,823.60

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Solution

The fourth proportional to 146,820.40, 220,230.60 and 132,823.60 is: 199,235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,820.40 : 220,230.60 = 132,823.60 : x
  2. Step 2: Convert to fraction form
    146,820.40/220,230.60 = 132,823.60/x
  3. Step 3: Cross multiply
    146,820.40x = 220,230.60 × 132,823.60
  4. Step 4: Simplify right side
    146,820.40x = 29,251,821,122.16
  5. Step 5: Solve for x
    x = 29,251,821,122.16/146,820.40
  6. Step 6: Final answer
    x = 199,235.40

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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.