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Finding the Fourth Proportional to 136,350.98, 188,164.59 and 75,933.28

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Solution

The fourth proportional to 136,350.98, 188,164.59 and 75,933.28 is: 104,788.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,350.98 : 188,164.59 = 75,933.28 : x
  2. Step 2: Convert to fraction form
    136,350.98/188,164.59 = 75,933.28/x
  3. Step 3: Cross multiply
    136,350.98x = 188,164.59 × 75,933.28
  4. Step 4: Simplify right side
    136,350.98x = 14,287,954,449.01
  5. Step 5: Solve for x
    x = 14,287,954,449.01/136,350.98
  6. Step 6: Final answer
    x = 104,788.06

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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.