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Finding the Fourth Proportional to 275,158.86, 412,738.32 and 181,642.74

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Solution

The fourth proportional to 275,158.86, 412,738.32 and 181,642.74 is: 272,464.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,158.86 : 412,738.32 = 181,642.74 : x
  2. Step 2: Convert to fraction form
    275,158.86/412,738.32 = 181,642.74/x
  3. Step 3: Cross multiply
    275,158.86x = 412,738.32 × 181,642.74
  4. Step 4: Simplify right side
    275,158.86x = 74,970,919,347.80
  5. Step 5: Solve for x
    x = 74,970,919,347.80/275,158.86
  6. Step 6: Final answer
    x = 272,464.13

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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.