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Finding the Fourth Proportional to 198,495.64, 297,720.22 and 56,353.40

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Solution

The fourth proportional to 198,495.64, 297,720.22 and 56,353.40 is: 84,523.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,495.64 : 297,720.22 = 56,353.40 : x
  2. Step 2: Convert to fraction form
    198,495.64/297,720.22 = 56,353.40/x
  3. Step 3: Cross multiply
    198,495.64x = 297,720.22 × 56,353.40
  4. Step 4: Simplify right side
    198,495.64x = 16,777,546,645.75
  5. Step 5: Solve for x
    x = 16,777,546,645.75/198,495.64
  6. Step 6: Final answer
    x = 84,523.50

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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.