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Finding the Fourth Proportional to 146,517.60, 220,246.20 and 136,117.20

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Solution

The fourth proportional to 146,517.60, 220,246.20 and 136,117.20 is: 204,612.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,517.60 : 220,246.20 = 136,117.20 : x
  2. Step 2: Convert to fraction form
    146,517.60/220,246.20 = 136,117.20/x
  3. Step 3: Cross multiply
    146,517.60x = 220,246.20 × 136,117.20
  4. Step 4: Simplify right side
    146,517.60x = 29,979,296,054.64
  5. Step 5: Solve for x
    x = 29,979,296,054.64/146,517.60
  6. Step 6: Final answer
    x = 204,612.25

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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.