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Finding the Fourth Proportional to 298,391.34, 447,766.68 and 108,868.35

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Solution

The fourth proportional to 298,391.34, 447,766.68 and 108,868.35 is: 163,368.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,391.34 : 447,766.68 = 108,868.35 : x
  2. Step 2: Convert to fraction form
    298,391.34/447,766.68 = 108,868.35/x
  3. Step 3: Cross multiply
    298,391.34x = 447,766.68 × 108,868.35
  4. Step 4: Simplify right side
    298,391.34x = 48,747,619,636.58
  5. Step 5: Solve for x
    x = 48,747,619,636.58/298,391.34
  6. Step 6: Final answer
    x = 163,368.08

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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.