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Finding the Fourth Proportional to 336,411, 504,713.91 and 99,759.39

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Solution

The fourth proportional to 336,411, 504,713.91 and 99,759.39 is: 149,667.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,411 : 504,713.91 = 99,759.39 : x
  2. Step 2: Convert to fraction form
    336,411/504,713.91 = 99,759.39/x
  3. Step 3: Cross multiply
    336,411x = 504,713.91 × 99,759.39
  4. Step 4: Simplify right side
    336,411x = 50,349,951,786.11
  5. Step 5: Solve for x
    x = 50,349,951,786.11/336,411
  6. Step 6: Final answer
    x = 149,667.97

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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.