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Finding the Fourth Proportional to 298,431.73, 411,831.70 and 162,466.85

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Solution

The fourth proportional to 298,431.73, 411,831.70 and 162,466.85 is: 224,202.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,431.73 : 411,831.70 = 162,466.85 : x
  2. Step 2: Convert to fraction form
    298,431.73/411,831.70 = 162,466.85/x
  3. Step 3: Cross multiply
    298,431.73x = 411,831.70 × 162,466.85
  4. Step 4: Simplify right side
    298,431.73x = 66,908,999,029.15
  5. Step 5: Solve for x
    x = 66,908,999,029.15/298,431.73
  6. Step 6: Final answer
    x = 224,202.03

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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.