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Finding the Fourth Proportional to 14,615,190.70, 20,494,859.30 and 14,615,190.70

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Solution

The fourth proportional to 14,615,190.70, 20,494,859.30 and 14,615,190.70 is: 20,494,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,615,190.70 : 20,494,859.30 = 14,615,190.70 : x
  2. Step 2: Convert to fraction form
    14,615,190.70/20,494,859.30 = 14,615,190.70/x
  3. Step 3: Cross multiply
    14,615,190.70x = 20,494,859.30 × 14,615,190.70
  4. Step 4: Simplify right side
    14,615,190.70x = 299,536,277,039,168.50
  5. Step 5: Solve for x
    x = 299,536,277,039,168.50/14,615,190.70
  6. Step 6: Final answer
    x = 20,494,859.30

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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.