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Finding the Fourth Proportional to 303,814.36, 455,720.10 and 168,814.84

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Solution

The fourth proportional to 303,814.36, 455,720.10 and 168,814.84 is: 253,221.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,814.36 : 455,720.10 = 168,814.84 : x
  2. Step 2: Convert to fraction form
    303,814.36/455,720.10 = 168,814.84/x
  3. Step 3: Cross multiply
    303,814.36x = 455,720.10 × 168,814.84
  4. Step 4: Simplify right side
    303,814.36x = 76,932,315,766.28
  5. Step 5: Solve for x
    x = 76,932,315,766.28/303,814.36
  6. Step 6: Final answer
    x = 253,221.46

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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.