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Finding the Fourth Proportional to 34,604,806.80, 51,915,083.40 and 20,220,470.40

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Solution

The fourth proportional to 34,604,806.80, 51,915,083.40 and 20,220,470.40 is: 30,335,306.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,604,806.80 : 51,915,083.40 = 20,220,470.40 : x
  2. Step 2: Convert to fraction form
    34,604,806.80/51,915,083.40 = 20,220,470.40/x
  3. Step 3: Cross multiply
    34,604,806.80x = 51,915,083.40 × 20,220,470.40
  4. Step 4: Simplify right side
    34,604,806.80x = 1,049,747,407,203,231.25
  5. Step 5: Solve for x
    x = 1,049,747,407,203,231.25/34,604,806.80
  6. Step 6: Final answer
    x = 30,335,306.11

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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.