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Finding the Fourth Proportional to 119,590.97, 165,042.62 and 68,603.32

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Solution

The fourth proportional to 119,590.97, 165,042.62 and 68,603.32 is: 94,676.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,590.97 : 165,042.62 = 68,603.32 : x
  2. Step 2: Convert to fraction form
    119,590.97/165,042.62 = 68,603.32/x
  3. Step 3: Cross multiply
    119,590.97x = 165,042.62 × 68,603.32
  4. Step 4: Simplify right side
    119,590.97x = 11,322,471,673.50
  5. Step 5: Solve for x
    x = 11,322,471,673.50/119,590.97
  6. Step 6: Final answer
    x = 94,676.64

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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.