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Finding the Fourth Proportional to 324,433.12, 486,650.84 and 99,792.04

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Solution

The fourth proportional to 324,433.12, 486,650.84 and 99,792.04 is: 149,688.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,433.12 : 486,650.84 = 99,792.04 : x
  2. Step 2: Convert to fraction form
    324,433.12/486,650.84 = 99,792.04/x
  3. Step 3: Cross multiply
    324,433.12x = 486,650.84 × 99,792.04
  4. Step 4: Simplify right side
    324,433.12x = 48,563,880,091.31
  5. Step 5: Solve for x
    x = 48,563,880,091.31/324,433.12
  6. Step 6: Final answer
    x = 149,688.42

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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.