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Finding the Fourth Proportional to 329,654.80, 494,433.60 and 93,021.40

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Solution

The fourth proportional to 329,654.80, 494,433.60 and 93,021.40 is: 139,518.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,654.80 : 494,433.60 = 93,021.40 : x
  2. Step 2: Convert to fraction form
    329,654.80/494,433.60 = 93,021.40/x
  3. Step 3: Cross multiply
    329,654.80x = 494,433.60 × 93,021.40
  4. Step 4: Simplify right side
    329,654.80x = 45,992,905,679.04
  5. Step 5: Solve for x
    x = 45,992,905,679.04/329,654.80
  6. Step 6: Final answer
    x = 139,518.39

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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.