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Finding the Fourth Proportional to 312,735.99, 469,104 and 125,703.75

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Solution

The fourth proportional to 312,735.99, 469,104 and 125,703.75 is: 188,555.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,735.99 : 469,104 = 125,703.75 : x
  2. Step 2: Convert to fraction form
    312,735.99/469,104 = 125,703.75/x
  3. Step 3: Cross multiply
    312,735.99x = 469,104 × 125,703.75
  4. Step 4: Simplify right side
    312,735.99x = 58,968,131,940
  5. Step 5: Solve for x
    x = 58,968,131,940/312,735.99
  6. Step 6: Final answer
    x = 188,555.63

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.