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Finding the Fourth Proportional to 168,380.94, 252,486.90 and 56,021.52

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Solution

The fourth proportional to 168,380.94, 252,486.90 and 56,021.52 is: 84,004.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,380.94 : 252,486.90 = 56,021.52 : x
  2. Step 2: Convert to fraction form
    168,380.94/252,486.90 = 56,021.52/x
  3. Step 3: Cross multiply
    168,380.94x = 252,486.90 × 56,021.52
  4. Step 4: Simplify right side
    168,380.94x = 14,144,699,918.09
  5. Step 5: Solve for x
    x = 14,144,699,918.09/168,380.94
  6. Step 6: Final answer
    x = 84,004.16

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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.