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Finding the Fourth Proportional to 403,576.56, 605,399.64 and 104,054.60

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Solution

The fourth proportional to 403,576.56, 605,399.64 and 104,054.60 is: 156,090.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,576.56 : 605,399.64 = 104,054.60 : x
  2. Step 2: Convert to fraction form
    403,576.56/605,399.64 = 104,054.60/x
  3. Step 3: Cross multiply
    403,576.56x = 605,399.64 × 104,054.60
  4. Step 4: Simplify right side
    403,576.56x = 62,994,618,503.64
  5. Step 5: Solve for x
    x = 62,994,618,503.64/403,576.56
  6. Step 6: Final answer
    x = 156,090.88

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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.