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Finding the Fourth Proportional to 324,518.66, 486,824.14 and 99,897.84

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Solution

The fourth proportional to 324,518.66, 486,824.14 and 99,897.84 is: 149,860.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,518.66 : 486,824.14 = 99,897.84 : x
  2. Step 2: Convert to fraction form
    324,518.66/486,824.14 = 99,897.84/x
  3. Step 3: Cross multiply
    324,518.66x = 486,824.14 × 99,897.84
  4. Step 4: Simplify right side
    324,518.66x = 48,632,680,045.86
  5. Step 5: Solve for x
    x = 48,632,680,045.86/324,518.66
  6. Step 6: Final answer
    x = 149,860.97

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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.