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Finding the Fourth Proportional to 274,691,707.20, 412,037,560.80 and 92,938,885.20

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Solution

The fourth proportional to 274,691,707.20, 412,037,560.80 and 92,938,885.20 is: 139,408,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,691,707.20 : 412,037,560.80 = 92,938,885.20 : x
  2. Step 2: Convert to fraction form
    274,691,707.20/412,037,560.80 = 92,938,885.20/x
  3. Step 3: Cross multiply
    274,691,707.20x = 412,037,560.80 × 92,938,885.20
  4. Step 4: Simplify right side
    274,691,707.20x = 38,294,311,561,279,224
  5. Step 5: Solve for x
    x = 38,294,311,561,279,224/274,691,707.20
  6. Step 6: Final answer
    x = 139,408,327.80

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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.