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Finding the Fourth Proportional to 368,260.08, 508,268.72 and 230,502.91

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Solution

The fourth proportional to 368,260.08, 508,268.72 and 230,502.91 is: 318,137.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,260.08 : 508,268.72 = 230,502.91 : x
  2. Step 2: Convert to fraction form
    368,260.08/508,268.72 = 230,502.91/x
  3. Step 3: Cross multiply
    368,260.08x = 508,268.72 × 230,502.91
  4. Step 4: Simplify right side
    368,260.08x = 117,157,419,021.98
  5. Step 5: Solve for x
    x = 117,157,419,021.98/368,260.08
  6. Step 6: Final answer
    x = 318,137.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.