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Finding the Fourth Proportional to 188,756.98, 260,495.34 and 108,197.88

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Solution

The fourth proportional to 188,756.98, 260,495.34 and 108,197.88 is: 149,319.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,756.98 : 260,495.34 = 108,197.88 : x
  2. Step 2: Convert to fraction form
    188,756.98/260,495.34 = 108,197.88/x
  3. Step 3: Cross multiply
    188,756.98x = 260,495.34 × 108,197.88
  4. Step 4: Simplify right side
    188,756.98x = 28,185,043,537.88
  5. Step 5: Solve for x
    x = 28,185,043,537.88/188,756.98
  6. Step 6: Final answer
    x = 149,319.21

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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.