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Finding the Fourth Proportional to 92,848,384.60, 139,272,576.90 and 80,093,800.60

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Solution

The fourth proportional to 92,848,384.60, 139,272,576.90 and 80,093,800.60 is: 120,140,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,848,384.60 : 139,272,576.90 = 80,093,800.60 : x
  2. Step 2: Convert to fraction form
    92,848,384.60/139,272,576.90 = 80,093,800.60/x
  3. Step 3: Cross multiply
    92,848,384.60x = 139,272,576.90 × 80,093,800.60
  4. Step 4: Simplify right side
    92,848,384.60x = 11,154,870,003,276,766
  5. Step 5: Solve for x
    x = 11,154,870,003,276,766/92,848,384.60
  6. Step 6: Final answer
    x = 120,140,700.90

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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.