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Finding the Fourth Proportional to 119,675.38, 165,161.52 and 65,969.95

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Solution

The fourth proportional to 119,675.38, 165,161.52 and 65,969.95 is: 91,043.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,675.38 : 165,161.52 = 65,969.95 : x
  2. Step 2: Convert to fraction form
    119,675.38/165,161.52 = 65,969.95/x
  3. Step 3: Cross multiply
    119,675.38x = 165,161.52 × 65,969.95
  4. Step 4: Simplify right side
    119,675.38x = 10,895,697,216.32
  5. Step 5: Solve for x
    x = 10,895,697,216.32/119,675.38
  6. Step 6: Final answer
    x = 91,043.77

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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.