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Finding the Fourth Proportional to 239,596.10, 330,748.89 and 154,754.54

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Solution

The fourth proportional to 239,596.10, 330,748.89 and 154,754.54 is: 213,629.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,596.10 : 330,748.89 = 154,754.54 : x
  2. Step 2: Convert to fraction form
    239,596.10/330,748.89 = 154,754.54/x
  3. Step 3: Cross multiply
    239,596.10x = 330,748.89 × 154,754.54
  4. Step 4: Simplify right side
    239,596.10x = 51,184,892,327.46
  5. Step 5: Solve for x
    x = 51,184,892,327.46/239,596.10
  6. Step 6: Final answer
    x = 213,629.91

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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.