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Finding the Fourth Proportional to 403,568.60, 605,134.20 and 166,643.60

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Solution

The fourth proportional to 403,568.60, 605,134.20 and 166,643.60 is: 249,875.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,568.60 : 605,134.20 = 166,643.60 : x
  2. Step 2: Convert to fraction form
    403,568.60/605,134.20 = 166,643.60/x
  3. Step 3: Cross multiply
    403,568.60x = 605,134.20 × 166,643.60
  4. Step 4: Simplify right side
    403,568.60x = 100,841,741,571.12
  5. Step 5: Solve for x
    x = 100,841,741,571.12/403,568.60
  6. Step 6: Final answer
    x = 249,875.09

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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.