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Finding the Fourth Proportional to 20,161,290.45, 30,241,935.68 and 20,161,290.45

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Solution

The fourth proportional to 20,161,290.45, 30,241,935.68 and 20,161,290.45 is: 30,241,935.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161,290.45 : 30,241,935.68 = 20,161,290.45 : x
  2. Step 2: Convert to fraction form
    20,161,290.45/30,241,935.68 = 20,161,290.45/x
  3. Step 3: Cross multiply
    20,161,290.45x = 30,241,935.68 × 20,161,290.45
  4. Step 4: Simplify right side
    20,161,290.45x = 609,716,449,014,698.25
  5. Step 5: Solve for x
    x = 609,716,449,014,698.25/20,161,290.45
  6. Step 6: Final answer
    x = 30,241,935.68

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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.