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Finding the Fourth Proportional to 119,969.74, 165,556.92 and 66,253.69

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Solution

The fourth proportional to 119,969.74, 165,556.92 and 66,253.69 is: 91,429.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,969.74 : 165,556.92 = 66,253.69 : x
  2. Step 2: Convert to fraction form
    119,969.74/165,556.92 = 66,253.69/x
  3. Step 3: Cross multiply
    119,969.74x = 165,556.92 × 66,253.69
  4. Step 4: Simplify right side
    119,969.74x = 10,968,756,855.03
  5. Step 5: Solve for x
    x = 10,968,756,855.03/119,969.74
  6. Step 6: Final answer
    x = 91,429.36

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1.5x scale

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.