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Finding the Fourth Proportional to 344,911.09, 517,449.44 and 108,253.77

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Solution

The fourth proportional to 344,911.09, 517,449.44 and 108,253.77 is: 162,406.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,911.09 : 517,449.44 = 108,253.77 : x
  2. Step 2: Convert to fraction form
    344,911.09/517,449.44 = 108,253.77/x
  3. Step 3: Cross multiply
    344,911.09x = 517,449.44 × 108,253.77
  4. Step 4: Simplify right side
    344,911.09x = 56,015,850,690.12
  5. Step 5: Solve for x
    x = 56,015,850,690.12/344,911.09
  6. Step 6: Final answer
    x = 162,406.64

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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.