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Finding the Fourth Proportional to 229,236.20, 343,854.30 and 216,114.20

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Solution

The fourth proportional to 229,236.20, 343,854.30 and 216,114.20 is: 324,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,236.20 : 343,854.30 = 216,114.20 : x
  2. Step 2: Convert to fraction form
    229,236.20/343,854.30 = 216,114.20/x
  3. Step 3: Cross multiply
    229,236.20x = 343,854.30 × 216,114.20
  4. Step 4: Simplify right side
    229,236.20x = 74,311,796,961.06
  5. Step 5: Solve for x
    x = 74,311,796,961.06/229,236.20
  6. Step 6: Final answer
    x = 324,171.30

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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.