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Finding the Fourth Proportional to 54,203,486.80, 81,332,786.40 and 36,020,331.40

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Solution

The fourth proportional to 54,203,486.80, 81,332,786.40 and 36,020,331.40 is: 54,048,809.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,203,486.80 : 81,332,786.40 = 36,020,331.40 : x
  2. Step 2: Convert to fraction form
    54,203,486.80/81,332,786.40 = 36,020,331.40/x
  3. Step 3: Cross multiply
    54,203,486.80x = 81,332,786.40 × 36,020,331.40
  4. Step 4: Simplify right side
    54,203,486.80x = 2,929,633,919,813,413
  5. Step 5: Solve for x
    x = 2,929,633,919,813,413/54,203,486.80
  6. Step 6: Final answer
    x = 54,048,809.27

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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.