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Finding the Fourth Proportional to 239,596.35, 330,749.24 and 154,754.79

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Solution

The fourth proportional to 239,596.35, 330,749.24 and 154,754.79 is: 213,630.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,596.35 : 330,749.24 = 154,754.79 : x
  2. Step 2: Convert to fraction form
    239,596.35/330,749.24 = 154,754.79/x
  3. Step 3: Cross multiply
    239,596.35x = 330,749.24 × 154,754.79
  4. Step 4: Simplify right side
    239,596.35x = 51,185,028,405.09
  5. Step 5: Solve for x
    x = 51,185,028,405.09/239,596.35
  6. Step 6: Final answer
    x = 213,630.25

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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.