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Finding the Fourth Proportional to 223,888.20, 336,221.10 and 118,912.20

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Solution

The fourth proportional to 223,888.20, 336,221.10 and 118,912.20 is: 178,574.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,888.20 : 336,221.10 = 118,912.20 : x
  2. Step 2: Convert to fraction form
    223,888.20/336,221.10 = 118,912.20/x
  3. Step 3: Cross multiply
    223,888.20x = 336,221.10 × 118,912.20
  4. Step 4: Simplify right side
    223,888.20x = 39,980,790,687.42
  5. Step 5: Solve for x
    x = 39,980,790,687.42/223,888.20
  6. Step 6: Final answer
    x = 178,574.80

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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.