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Finding the Fourth Proportional to 7,166,620.20, 10,061,611.80 and 7,166,620.20

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Solution

The fourth proportional to 7,166,620.20, 10,061,611.80 and 7,166,620.20 is: 10,061,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,166,620.20 : 10,061,611.80 = 7,166,620.20 : x
  2. Step 2: Convert to fraction form
    7,166,620.20/10,061,611.80 = 7,166,620.20/x
  3. Step 3: Cross multiply
    7,166,620.20x = 10,061,611.80 × 7,166,620.20
  4. Step 4: Simplify right side
    7,166,620.20x = 72,107,750,370,438.38
  5. Step 5: Solve for x
    x = 72,107,750,370,438.38/7,166,620.20
  6. Step 6: Final answer
    x = 10,061,611.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.