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Finding the Fourth Proportional to 297,870.40, 446,805.60 and 131,982.40

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Solution

The fourth proportional to 297,870.40, 446,805.60 and 131,982.40 is: 197,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,870.40 : 446,805.60 = 131,982.40 : x
  2. Step 2: Convert to fraction form
    297,870.40/446,805.60 = 131,982.40/x
  3. Step 3: Cross multiply
    297,870.40x = 446,805.60 × 131,982.40
  4. Step 4: Simplify right side
    297,870.40x = 58,970,475,421.44
  5. Step 5: Solve for x
    x = 58,970,475,421.44/297,870.40
  6. Step 6: Final answer
    x = 197,973.60

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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.