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Finding the Fourth Proportional to 320,950.98, 481,084.98 and 121,186.32

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Solution

The fourth proportional to 320,950.98, 481,084.98 and 121,186.32 is: 181,650.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,950.98 : 481,084.98 = 121,186.32 : x
  2. Step 2: Convert to fraction form
    320,950.98/481,084.98 = 121,186.32/x
  3. Step 3: Cross multiply
    320,950.98x = 481,084.98 × 121,186.32
  4. Step 4: Simplify right side
    320,950.98x = 58,300,918,333.47
  5. Step 5: Solve for x
    x = 58,300,918,333.47/320,950.98
  6. Step 6: Final answer
    x = 181,650.54

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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.