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Finding the Fourth Proportional to 110,206.76, 165,503.95 and 108,629.06

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Solution

The fourth proportional to 110,206.76, 165,503.95 and 108,629.06 is: 163,134.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,206.76 : 165,503.95 = 108,629.06 : x
  2. Step 2: Convert to fraction form
    110,206.76/165,503.95 = 108,629.06/x
  3. Step 3: Cross multiply
    110,206.76x = 165,503.95 × 108,629.06
  4. Step 4: Simplify right side
    110,206.76x = 17,978,537,415.69
  5. Step 5: Solve for x
    x = 17,978,537,415.69/110,206.76
  6. Step 6: Final answer
    x = 163,134.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.