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Finding the Fourth Proportional to 321,595.44, 482,393.15 and 111,118.56

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Solution

The fourth proportional to 321,595.44, 482,393.15 and 111,118.56 is: 166,677.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,595.44 : 482,393.15 = 111,118.56 : x
  2. Step 2: Convert to fraction form
    321,595.44/482,393.15 = 111,118.56/x
  3. Step 3: Cross multiply
    321,595.44x = 482,393.15 × 111,118.56
  4. Step 4: Simplify right side
    321,595.44x = 53,602,832,181.86
  5. Step 5: Solve for x
    x = 53,602,832,181.86/321,595.44
  6. Step 6: Final answer
    x = 166,677.84

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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.