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Finding the Fourth Proportional to 66,954,562.90, 100,406,961.15 and 26,556,687.70

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Solution

The fourth proportional to 66,954,562.90, 100,406,961.15 and 26,556,687.70 is: 39,825,161.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,954,562.90 : 100,406,961.15 = 26,556,687.70 : x
  2. Step 2: Convert to fraction form
    66,954,562.90/100,406,961.15 = 26,556,687.70/x
  3. Step 3: Cross multiply
    66,954,562.90x = 100,406,961.15 × 26,556,687.70
  4. Step 4: Simplify right side
    66,954,562.90x = 2,666,476,310,166,583
  5. Step 5: Solve for x
    x = 2,666,476,310,166,583/66,954,562.90
  6. Step 6: Final answer
    x = 39,825,161.94

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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.