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Finding the Fourth Proportional to 188,625.60, 260,305.50 and 103,744.08

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Solution

The fourth proportional to 188,625.60, 260,305.50 and 103,744.08 is: 143,168.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,625.60 : 260,305.50 = 103,744.08 : x
  2. Step 2: Convert to fraction form
    188,625.60/260,305.50 = 103,744.08/x
  3. Step 3: Cross multiply
    188,625.60x = 260,305.50 × 103,744.08
  4. Step 4: Simplify right side
    188,625.60x = 27,005,154,616.44
  5. Step 5: Solve for x
    x = 27,005,154,616.44/188,625.60
  6. Step 6: Final answer
    x = 143,168.03

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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.