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Finding the Fourth Proportional to 119,937.75, 165,528.69 and 69,636.75

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Solution

The fourth proportional to 119,937.75, 165,528.69 and 69,636.75 is: 96,107.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,937.75 : 165,528.69 = 69,636.75 : x
  2. Step 2: Convert to fraction form
    119,937.75/165,528.69 = 69,636.75/x
  3. Step 3: Cross multiply
    119,937.75x = 165,528.69 × 69,636.75
  4. Step 4: Simplify right side
    119,937.75x = 11,526,880,003.36
  5. Step 5: Solve for x
    x = 11,526,880,003.36/119,937.75
  6. Step 6: Final answer
    x = 96,107.19

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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.