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Finding the Fourth Proportional to 403,605.40, 605,148.90 and 167,042.20

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Solution

The fourth proportional to 403,605.40, 605,148.90 and 167,042.20 is: 250,456.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,605.40 : 605,148.90 = 167,042.20 : x
  2. Step 2: Convert to fraction form
    403,605.40/605,148.90 = 167,042.20/x
  3. Step 3: Cross multiply
    403,605.40x = 605,148.90 × 167,042.20
  4. Step 4: Simplify right side
    403,605.40x = 101,085,403,583.58
  5. Step 5: Solve for x
    x = 101,085,403,583.58/403,605.40
  6. Step 6: Final answer
    x = 250,456.02

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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.