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Finding the Fourth Proportional to 227,068.80, 340,676.16 and 69,313.20

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Solution

The fourth proportional to 227,068.80, 340,676.16 and 69,313.20 is: 103,992.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,068.80 : 340,676.16 = 69,313.20 : x
  2. Step 2: Convert to fraction form
    227,068.80/340,676.16 = 69,313.20/x
  3. Step 3: Cross multiply
    227,068.80x = 340,676.16 × 69,313.20
  4. Step 4: Simplify right side
    227,068.80x = 23,613,354,813.31
  5. Step 5: Solve for x
    x = 23,613,354,813.31/227,068.80
  6. Step 6: Final answer
    x = 103,992.07

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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.