Home / 321,845.13-482,768.10-111,483.05

Finding the Fourth Proportional to 321,845.13, 482,768.10 and 111,483.05

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Solution

The fourth proportional to 321,845.13, 482,768.10 and 111,483.05 is: 167,224.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,845.13 : 482,768.10 = 111,483.05 : x
  2. Step 2: Convert to fraction form
    321,845.13/482,768.10 = 111,483.05/x
  3. Step 3: Cross multiply
    321,845.13x = 482,768.10 × 111,483.05
  4. Step 4: Simplify right side
    321,845.13x = 53,820,457,816.86
  5. Step 5: Solve for x
    x = 53,820,457,816.86/321,845.13
  6. Step 6: Final answer
    x = 167,224.71

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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.