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Finding the Fourth Proportional to 321,697.00, 482,231.66 and 153,172.05

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Solution

The fourth proportional to 321,697.00, 482,231.66 and 153,172.05 is: 229,608.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,697.00 : 482,231.66 = 153,172.05 : x
  2. Step 2: Convert to fraction form
    321,697.00/482,231.66 = 153,172.05/x
  3. Step 3: Cross multiply
    321,697.00x = 482,231.66 × 153,172.05
  4. Step 4: Simplify right side
    321,697.00x = 73,864,410,224.47
  5. Step 5: Solve for x
    x = 73,864,410,224.47/321,697.00
  6. Step 6: Final answer
    x = 229,608.64

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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.