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Finding the Fourth Proportional to 321,699.99, 482,624.12 and 111,337.93

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Solution

The fourth proportional to 321,699.99, 482,624.12 and 111,337.93 is: 167,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,699.99 : 482,624.12 = 111,337.93 : x
  2. Step 2: Convert to fraction form
    321,699.99/482,624.12 = 111,337.93/x
  3. Step 3: Cross multiply
    321,699.99x = 482,624.12 × 111,337.93
  4. Step 4: Simplify right side
    321,699.99x = 53,734,368,725.62
  5. Step 5: Solve for x
    x = 53,734,368,725.62/321,699.99
  6. Step 6: Final answer
    x = 167,032.55

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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.