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Finding the Fourth Proportional to 119,910.99, 165,477.41 and 66,196.08

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Solution

The fourth proportional to 119,910.99, 165,477.41 and 66,196.08 is: 91,350.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,910.99 : 165,477.41 = 66,196.08 : x
  2. Step 2: Convert to fraction form
    119,910.99/165,477.41 = 66,196.08/x
  3. Step 3: Cross multiply
    119,910.99x = 165,477.41 × 66,196.08
  4. Step 4: Simplify right side
    119,910.99x = 10,953,955,870.55
  5. Step 5: Solve for x
    x = 10,953,955,870.55/119,910.99
  6. Step 6: Final answer
    x = 91,350.72

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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.