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Finding the Fourth Proportional to 297,078.90, 445,652.90 and 107,628.47

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Solution

The fourth proportional to 297,078.90, 445,652.90 and 107,628.47 is: 161,455.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,078.90 : 445,652.90 = 107,628.47 : x
  2. Step 2: Convert to fraction form
    297,078.90/445,652.90 = 107,628.47/x
  3. Step 3: Cross multiply
    297,078.90x = 445,652.90 × 107,628.47
  4. Step 4: Simplify right side
    297,078.90x = 47,964,939,778.06
  5. Step 5: Solve for x
    x = 47,964,939,778.06/297,078.90
  6. Step 6: Final answer
    x = 161,455.22

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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.