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Finding the Fourth Proportional to 303,971.69, 455,563.19 and 123,847.65

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Solution

The fourth proportional to 303,971.69, 455,563.19 and 123,847.65 is: 185,610.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,971.69 : 455,563.19 = 123,847.65 : x
  2. Step 2: Convert to fraction form
    303,971.69/455,563.19 = 123,847.65/x
  3. Step 3: Cross multiply
    303,971.69x = 455,563.19 × 123,847.65
  4. Step 4: Simplify right side
    303,971.69x = 56,420,429,888.77
  5. Step 5: Solve for x
    x = 56,420,429,888.77/303,971.69
  6. Step 6: Final answer
    x = 185,610.81

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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.