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Finding the Fourth Proportional to 200,361.78, 276,495.62 and 109,716.08

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Solution

The fourth proportional to 200,361.78, 276,495.62 and 109,716.08 is: 151,406.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,361.78 : 276,495.62 = 109,716.08 : x
  2. Step 2: Convert to fraction form
    200,361.78/276,495.62 = 109,716.08/x
  3. Step 3: Cross multiply
    200,361.78x = 276,495.62 × 109,716.08
  4. Step 4: Simplify right side
    200,361.78x = 30,336,013,632.51
  5. Step 5: Solve for x
    x = 30,336,013,632.51/200,361.78
  6. Step 6: Final answer
    x = 151,406.19

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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.