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Finding the Fourth Proportional to 297,845.80, 446,768.70 and 171,437.20

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Solution

The fourth proportional to 297,845.80, 446,768.70 and 171,437.20 is: 257,155.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,845.80 : 446,768.70 = 171,437.20 : x
  2. Step 2: Convert to fraction form
    297,845.80/446,768.70 = 171,437.20/x
  3. Step 3: Cross multiply
    297,845.80x = 446,768.70 × 171,437.20
  4. Step 4: Simplify right side
    297,845.80x = 76,592,774,975.64
  5. Step 5: Solve for x
    x = 76,592,774,975.64/297,845.80
  6. Step 6: Final answer
    x = 257,155.80

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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.