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Finding the Fourth Proportional to 336,372.80, 504,561.24 and 99,717.68

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Solution

The fourth proportional to 336,372.80, 504,561.24 and 99,717.68 is: 149,577.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,372.80 : 504,561.24 = 99,717.68 : x
  2. Step 2: Convert to fraction form
    336,372.80/504,561.24 = 99,717.68/x
  3. Step 3: Cross multiply
    336,372.80x = 504,561.24 × 99,717.68
  4. Step 4: Simplify right side
    336,372.80x = 50,313,676,270.72
  5. Step 5: Solve for x
    x = 50,313,676,270.72/336,372.80
  6. Step 6: Final answer
    x = 149,577.12

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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.