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Finding the Fourth Proportional to 57,471,211.45, 86,206,817.19 and 57,471,211.45

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Solution

The fourth proportional to 57,471,211.45, 86,206,817.19 and 57,471,211.45 is: 86,206,817.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,471,211.45 : 86,206,817.19 = 57,471,211.45 : x
  2. Step 2: Convert to fraction form
    57,471,211.45/86,206,817.19 = 57,471,211.45/x
  3. Step 3: Cross multiply
    57,471,211.45x = 86,206,817.19 × 57,471,211.45
  4. Step 4: Simplify right side
    57,471,211.45x = 4,954,410,219,157,985
  5. Step 5: Solve for x
    x = 4,954,410,219,157,985/57,471,211.45
  6. Step 6: Final answer
    x = 86,206,817.19

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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.