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Finding the Fourth Proportional to 456,809.49, 685,165.05 and 119,883.96

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Solution

The fourth proportional to 456,809.49, 685,165.05 and 119,883.96 is: 179,813.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,809.49 : 685,165.05 = 119,883.96 : x
  2. Step 2: Convert to fraction form
    456,809.49/685,165.05 = 119,883.96/x
  3. Step 3: Cross multiply
    456,809.49x = 685,165.05 × 119,883.96
  4. Step 4: Simplify right side
    456,809.49x = 82,140,299,447.60
  5. Step 5: Solve for x
    x = 82,140,299,447.60/456,809.49
  6. Step 6: Final answer
    x = 179,813.03

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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.