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Finding the Fourth Proportional to 188,507.01, 259,871.98 and 149,928.33

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Solution

The fourth proportional to 188,507.01, 259,871.98 and 149,928.33 is: 206,688.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,507.01 : 259,871.98 = 149,928.33 : x
  2. Step 2: Convert to fraction form
    188,507.01/259,871.98 = 149,928.33/x
  3. Step 3: Cross multiply
    188,507.01x = 259,871.98 × 149,928.33
  4. Step 4: Simplify right side
    188,507.01x = 38,962,171,975.19
  5. Step 5: Solve for x
    x = 38,962,171,975.19/188,507.01
  6. Step 6: Final answer
    x = 206,688.19

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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.