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Finding the Fourth Proportional to 198,326,492.20, 297,489,738.30 and 198,326,492.20

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Solution

The fourth proportional to 198,326,492.20, 297,489,738.30 and 198,326,492.20 is: 297,489,738.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,326,492.20 : 297,489,738.30 = 198,326,492.20 : x
  2. Step 2: Convert to fraction form
    198,326,492.20/297,489,738.30 = 198,326,492.20/x
  3. Step 3: Cross multiply
    198,326,492.20x = 297,489,738.30 × 198,326,492.20
  4. Step 4: Simplify right side
    198,326,492.20x = 59,000,096,262,534,992
  5. Step 5: Solve for x
    x = 59,000,096,262,534,992/198,326,492.20
  6. Step 6: Final answer
    x = 297,489,738.30

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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.