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Finding the Fourth Proportional to 321,700.99, 482,625.62 and 111,338.93

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Solution

The fourth proportional to 321,700.99, 482,625.62 and 111,338.93 is: 167,034.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,700.99 : 482,625.62 = 111,338.93 : x
  2. Step 2: Convert to fraction form
    321,700.99/482,625.62 = 111,338.93/x
  3. Step 3: Cross multiply
    321,700.99x = 482,625.62 × 111,338.93
  4. Step 4: Simplify right side
    321,700.99x = 53,735,020,121.39
  5. Step 5: Solve for x
    x = 53,735,020,121.39/321,700.99
  6. Step 6: Final answer
    x = 167,034.05

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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.