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Finding the Fourth Proportional to 146,736.60, 220,104.90 and 145,354.20

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Solution

The fourth proportional to 146,736.60, 220,104.90 and 145,354.20 is: 218,031.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,736.60 : 220,104.90 = 145,354.20 : x
  2. Step 2: Convert to fraction form
    146,736.60/220,104.90 = 145,354.20/x
  3. Step 3: Cross multiply
    146,736.60x = 220,104.90 × 145,354.20
  4. Step 4: Simplify right side
    146,736.60x = 31,993,171,655.58
  5. Step 5: Solve for x
    x = 31,993,171,655.58/146,736.60
  6. Step 6: Final answer
    x = 218,031.30

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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.