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Finding the Fourth Proportional to 119,759.63, 165,262.73 and 68,736.45

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Solution

The fourth proportional to 119,759.63, 165,262.73 and 68,736.45 is: 94,853.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,759.63 : 165,262.73 = 68,736.45 : x
  2. Step 2: Convert to fraction form
    119,759.63/165,262.73 = 68,736.45/x
  3. Step 3: Cross multiply
    119,759.63x = 165,262.73 × 68,736.45
  4. Step 4: Simplify right side
    119,759.63x = 11,359,574,040.20
  5. Step 5: Solve for x
    x = 11,359,574,040.20/119,759.63
  6. Step 6: Final answer
    x = 94,853.12

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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.