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Finding the Fourth Proportional to 324,518.16, 486,823.38 and 99,897.33

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Solution

The fourth proportional to 324,518.16, 486,823.38 and 99,897.33 is: 149,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,518.16 : 486,823.38 = 99,897.33 : x
  2. Step 2: Convert to fraction form
    324,518.16/486,823.38 = 99,897.33/x
  3. Step 3: Cross multiply
    324,518.16x = 486,823.38 × 99,897.33
  4. Step 4: Simplify right side
    324,518.16x = 48,632,355,843.58
  5. Step 5: Solve for x
    x = 48,632,355,843.58/324,518.16
  6. Step 6: Final answer
    x = 149,860.20

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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.