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Finding the Fourth Proportional to 323,933.88, 485,905.14 and 113,577.96

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Solution

The fourth proportional to 323,933.88, 485,905.14 and 113,577.96 is: 170,368.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,933.88 : 485,905.14 = 113,577.96 : x
  2. Step 2: Convert to fraction form
    323,933.88/485,905.14 = 113,577.96/x
  3. Step 3: Cross multiply
    323,933.88x = 485,905.14 × 113,577.96
  4. Step 4: Simplify right side
    323,933.88x = 55,188,114,554.71
  5. Step 5: Solve for x
    x = 55,188,114,554.71/323,933.88
  6. Step 6: Final answer
    x = 170,368.45

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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.