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Finding the Fourth Proportional to 188,250.71, 259,694.78 and 124,641.81

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Solution

The fourth proportional to 188,250.71, 259,694.78 and 124,641.81 is: 171,945.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,250.71 : 259,694.78 = 124,641.81 : x
  2. Step 2: Convert to fraction form
    188,250.71/259,694.78 = 124,641.81/x
  3. Step 3: Cross multiply
    188,250.71x = 259,694.78 × 124,641.81
  4. Step 4: Simplify right side
    188,250.71x = 32,368,826,803.54
  5. Step 5: Solve for x
    x = 32,368,826,803.54/188,250.71
  6. Step 6: Final answer
    x = 171,945.32

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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.