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Finding the Fourth Proportional to 41,865,872.80, 62,790,514.80 and 20,300,432.80

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Solution

The fourth proportional to 41,865,872.80, 62,790,514.80 and 20,300,432.80 is: 30,446,627.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,865,872.80 : 62,790,514.80 = 20,300,432.80 : x
  2. Step 2: Convert to fraction form
    41,865,872.80/62,790,514.80 = 20,300,432.80/x
  3. Step 3: Cross multiply
    41,865,872.80x = 62,790,514.80 × 20,300,432.80
  4. Step 4: Simplify right side
    41,865,872.80x = 1,274,674,626,174,805.50
  5. Step 5: Solve for x
    x = 1,274,674,626,174,805.50/41,865,872.80
  6. Step 6: Final answer
    x = 30,446,627.31

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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.