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Finding the Fourth Proportional to 99,669,969.45, 149,504,954.18 and 99,669,969.45

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Solution

The fourth proportional to 99,669,969.45, 149,504,954.18 and 99,669,969.45 is: 149,504,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,669,969.45 : 149,504,954.18 = 99,669,969.45 : x
  2. Step 2: Convert to fraction form
    99,669,969.45/149,504,954.18 = 99,669,969.45/x
  3. Step 3: Cross multiply
    99,669,969.45x = 149,504,954.18 × 99,669,969.45
  4. Step 4: Simplify right side
    99,669,969.45x = 14,901,154,215,245,902
  5. Step 5: Solve for x
    x = 14,901,154,215,245,902/99,669,969.45
  6. Step 6: Final answer
    x = 149,504,954.18

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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.