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Finding the Fourth Proportional to 119,646.83, 165,116.41 and 68,668.88

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Solution

The fourth proportional to 119,646.83, 165,116.41 and 68,668.88 is: 94,765.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,646.83 : 165,116.41 = 68,668.88 : x
  2. Step 2: Convert to fraction form
    119,646.83/165,116.41 = 68,668.88/x
  3. Step 3: Cross multiply
    119,646.83x = 165,116.41 × 68,668.88
  4. Step 4: Simplify right side
    119,646.83x = 11,338,357,947.07
  5. Step 5: Solve for x
    x = 11,338,357,947.07/119,646.83
  6. Step 6: Final answer
    x = 94,765.22

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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.