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Finding the Fourth Proportional to 403,374.06, 605,265.21 and 166,886.46

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Solution

The fourth proportional to 403,374.06, 605,265.21 and 166,886.46 is: 250,414.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,374.06 : 605,265.21 = 166,886.46 : x
  2. Step 2: Convert to fraction form
    403,374.06/605,265.21 = 166,886.46/x
  3. Step 3: Cross multiply
    403,374.06x = 605,265.21 × 166,886.46
  4. Step 4: Simplify right side
    403,374.06x = 101,010,568,258.06
  5. Step 5: Solve for x
    x = 101,010,568,258.06/403,374.06
  6. Step 6: Final answer
    x = 250,414.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.