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Finding the Fourth Proportional to 108,668.25, 163,017.59 and 102,692.25

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Solution

The fourth proportional to 108,668.25, 163,017.59 and 102,692.25 is: 154,052.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,668.25 : 163,017.59 = 102,692.25 : x
  2. Step 2: Convert to fraction form
    108,668.25/163,017.59 = 102,692.25/x
  3. Step 3: Cross multiply
    108,668.25x = 163,017.59 × 102,692.25
  4. Step 4: Simplify right side
    108,668.25x = 16,740,642,593.22
  5. Step 5: Solve for x
    x = 16,740,642,593.22/108,668.25
  6. Step 6: Final answer
    x = 154,052.75

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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.