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Finding the Fourth Proportional to 220,558.74, 330,853.92 and 92,346

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Solution

The fourth proportional to 220,558.74, 330,853.92 and 92,346 is: 138,525.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,558.74 : 330,853.92 = 92,346 : x
  2. Step 2: Convert to fraction form
    220,558.74/330,853.92 = 92,346/x
  3. Step 3: Cross multiply
    220,558.74x = 330,853.92 × 92,346
  4. Step 4: Simplify right side
    220,558.74x = 30,553,036,096.32
  5. Step 5: Solve for x
    x = 30,553,036,096.32/220,558.74
  6. Step 6: Final answer
    x = 138,525.62

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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.