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Finding the Fourth Proportional to 320,994.69, 481,490.87 and 96,354.15

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Solution

The fourth proportional to 320,994.69, 481,490.87 and 96,354.15 is: 144,530.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,994.69 : 481,490.87 = 96,354.15 : x
  2. Step 2: Convert to fraction form
    320,994.69/481,490.87 = 96,354.15/x
  3. Step 3: Cross multiply
    320,994.69x = 481,490.87 × 96,354.15
  4. Step 4: Simplify right side
    320,994.69x = 46,393,643,029.84
  5. Step 5: Solve for x
    x = 46,393,643,029.84/320,994.69
  6. Step 6: Final answer
    x = 144,530.87

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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.