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Finding the Fourth Proportional to 168,767.12, 253,055.90 and 56,388.12

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Solution

The fourth proportional to 168,767.12, 253,055.90 and 56,388.12 is: 84,550.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,767.12 : 253,055.90 = 56,388.12 : x
  2. Step 2: Convert to fraction form
    168,767.12/253,055.90 = 56,388.12/x
  3. Step 3: Cross multiply
    168,767.12x = 253,055.90 × 56,388.12
  4. Step 4: Simplify right side
    168,767.12x = 14,269,346,455.91
  5. Step 5: Solve for x
    x = 14,269,346,455.91/168,767.12
  6. Step 6: Final answer
    x = 84,550.51

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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.