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Finding the Fourth Proportional to 321,858.63, 482,788.35 and 111,496.56

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Solution

The fourth proportional to 321,858.63, 482,788.35 and 111,496.56 is: 167,244.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,858.63 : 482,788.35 = 111,496.56 : x
  2. Step 2: Convert to fraction form
    321,858.63/482,788.35 = 111,496.56/x
  3. Step 3: Cross multiply
    321,858.63x = 482,788.35 × 111,496.56
  4. Step 4: Simplify right side
    321,858.63x = 53,829,240,233.08
  5. Step 5: Solve for x
    x = 53,829,240,233.08/321,858.63
  6. Step 6: Final answer
    x = 167,244.98

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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.