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Finding the Fourth Proportional to 403,566.40, 605,090.40 and 167,003.20

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Solution

The fourth proportional to 403,566.40, 605,090.40 and 167,003.20 is: 250,397.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,566.40 : 605,090.40 = 167,003.20 : x
  2. Step 2: Convert to fraction form
    403,566.40/605,090.40 = 167,003.20/x
  3. Step 3: Cross multiply
    403,566.40x = 605,090.40 × 167,003.20
  4. Step 4: Simplify right side
    403,566.40x = 101,052,033,089.28
  5. Step 5: Solve for x
    x = 101,052,033,089.28/403,566.40
  6. Step 6: Final answer
    x = 250,397.54

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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.