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Finding the Fourth Proportional to 295,974.40, 408,365.92 and 168,647.28

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Solution

The fourth proportional to 295,974.40, 408,365.92 and 168,647.28 is: 232,688.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,974.40 : 408,365.92 = 168,647.28 : x
  2. Step 2: Convert to fraction form
    295,974.40/408,365.92 = 168,647.28/x
  3. Step 3: Cross multiply
    295,974.40x = 408,365.92 × 168,647.28
  4. Step 4: Simplify right side
    295,974.40x = 68,869,801,652.70
  5. Step 5: Solve for x
    x = 68,869,801,652.70/295,974.40
  6. Step 6: Final answer
    x = 232,688.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.