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Finding the Fourth Proportional to 14,764,900.20, 20,620,471.80 and 14,764,900.20

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Solution

The fourth proportional to 14,764,900.20, 20,620,471.80 and 14,764,900.20 is: 20,620,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,764,900.20 : 20,620,471.80 = 14,764,900.20 : x
  2. Step 2: Convert to fraction form
    14,764,900.20/20,620,471.80 = 14,764,900.20/x
  3. Step 3: Cross multiply
    14,764,900.20x = 20,620,471.80 × 14,764,900.20
  4. Step 4: Simplify right side
    14,764,900.20x = 304,459,208,203,914.38
  5. Step 5: Solve for x
    x = 304,459,208,203,914.38/14,764,900.20
  6. Step 6: Final answer
    x = 20,620,471.80

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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.