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Finding the Fourth Proportional to 298,333.29, 447,455.48 and 98,654.72

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Solution

The fourth proportional to 298,333.29, 447,455.48 and 98,654.72 is: 147,967.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,333.29 : 447,455.48 = 98,654.72 : x
  2. Step 2: Convert to fraction form
    298,333.29/447,455.48 = 98,654.72/x
  3. Step 3: Cross multiply
    298,333.29x = 447,455.48 × 98,654.72
  4. Step 4: Simplify right side
    298,333.29x = 44,143,595,717.23
  5. Step 5: Solve for x
    x = 44,143,595,717.23/298,333.29
  6. Step 6: Final answer
    x = 147,967.38

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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.