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Finding the Fourth Proportional to 324,501.42, 486,751.86 and 122,135.34

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Solution

The fourth proportional to 324,501.42, 486,751.86 and 122,135.34 is: 183,202.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,501.42 : 486,751.86 = 122,135.34 : x
  2. Step 2: Convert to fraction form
    324,501.42/486,751.86 = 122,135.34/x
  3. Step 3: Cross multiply
    324,501.42x = 486,751.86 × 122,135.34
  4. Step 4: Simplify right side
    324,501.42x = 59,449,603,916.73
  5. Step 5: Solve for x
    x = 59,449,603,916.73/324,501.42
  6. Step 6: Final answer
    x = 183,202.91

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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.