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Finding the Fourth Proportional to 324,396, 486,837.54 and 122,191.61

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Solution

The fourth proportional to 324,396, 486,837.54 and 122,191.61 is: 183,379.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,396 : 486,837.54 = 122,191.61 : x
  2. Step 2: Convert to fraction form
    324,396/486,837.54 = 122,191.61/x
  3. Step 3: Cross multiply
    324,396x = 486,837.54 × 122,191.61
  4. Step 4: Simplify right side
    324,396x = 59,487,460,386.85
  5. Step 5: Solve for x
    x = 59,487,460,386.85/324,396
  6. Step 6: Final answer
    x = 183,379.14

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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.