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Finding the Fourth Proportional to 200,361.36, 276,436.08 and 115,466.88

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Solution

The fourth proportional to 200,361.36, 276,436.08 and 115,466.88 is: 159,308.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,361.36 : 276,436.08 = 115,466.88 : x
  2. Step 2: Convert to fraction form
    200,361.36/276,436.08 = 115,466.88/x
  3. Step 3: Cross multiply
    200,361.36x = 276,436.08 × 115,466.88
  4. Step 4: Simplify right side
    200,361.36x = 31,919,211,677.03
  5. Step 5: Solve for x
    x = 31,919,211,677.03/200,361.36
  6. Step 6: Final answer
    x = 159,308.22

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1.5x scale

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.