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Finding the Fourth Proportional to 288,046.88, 397,441.06 and 167,118.12

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Solution

The fourth proportional to 288,046.88, 397,441.06 and 167,118.12 is: 230,586.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,046.88 : 397,441.06 = 167,118.12 : x
  2. Step 2: Convert to fraction form
    288,046.88/397,441.06 = 167,118.12/x
  3. Step 3: Cross multiply
    288,046.88x = 397,441.06 × 167,118.12
  4. Step 4: Simplify right side
    288,046.88x = 66,419,602,758.01
  5. Step 5: Solve for x
    x = 66,419,602,758.01/288,046.88
  6. Step 6: Final answer
    x = 230,586.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.