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Finding the Fourth Proportional to 329,187.94, 493,782.14 and 79,869.94

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Solution

The fourth proportional to 329,187.94, 493,782.14 and 79,869.94 is: 119,804.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,187.94 : 493,782.14 = 79,869.94 : x
  2. Step 2: Convert to fraction form
    329,187.94/493,782.14 = 79,869.94/x
  3. Step 3: Cross multiply
    329,187.94x = 493,782.14 × 79,869.94
  4. Step 4: Simplify right side
    329,187.94x = 39,438,348,860.09
  5. Step 5: Solve for x
    x = 39,438,348,860.09/329,187.94
  6. Step 6: Final answer
    x = 119,804.96

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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.