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Finding the Fourth Proportional to 269,698,811.70, 404,548,217.55 and 188,069,474.10

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Solution

The fourth proportional to 269,698,811.70, 404,548,217.55 and 188,069,474.10 is: 282,104,211.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,698,811.70 : 404,548,217.55 = 188,069,474.10 : x
  2. Step 2: Convert to fraction form
    269,698,811.70/404,548,217.55 = 188,069,474.10/x
  3. Step 3: Cross multiply
    269,698,811.70x = 404,548,217.55 × 188,069,474.10
  4. Step 4: Simplify right side
    269,698,811.70x = 76,083,170,522,720,896
  5. Step 5: Solve for x
    x = 76,083,170,522,720,896/269,698,811.70
  6. Step 6: Final answer
    x = 282,104,211.15

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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.