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Finding the Fourth Proportional to 660,163,627.80, 988,093,105.65 and 660,163,627.80

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Solution

The fourth proportional to 660,163,627.80, 988,093,105.65 and 660,163,627.80 is: 988,093,105.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,163,627.80 : 988,093,105.65 = 660,163,627.80 : x
  2. Step 2: Convert to fraction form
    660,163,627.80/988,093,105.65 = 660,163,627.80/x
  3. Step 3: Cross multiply
    660,163,627.80x = 988,093,105.65 × 660,163,627.80
  4. Step 4: Simplify right side
    660,163,627.80x = 652,303,129,230,072,576
  5. Step 5: Solve for x
    x = 652,303,129,230,072,576/660,163,627.80
  6. Step 6: Final answer
    x = 988,093,105.65

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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.