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Finding the Fourth Proportional to 60,571,811.80, 90,857,717.70 and 54,525,194.20

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Solution

The fourth proportional to 60,571,811.80, 90,857,717.70 and 54,525,194.20 is: 81,787,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,571,811.80 : 90,857,717.70 = 54,525,194.20 : x
  2. Step 2: Convert to fraction form
    60,571,811.80/90,857,717.70 = 54,525,194.20/x
  3. Step 3: Cross multiply
    60,571,811.80x = 90,857,717.70 × 54,525,194.20
  4. Step 4: Simplify right side
    60,571,811.80x = 4,954,034,702,161,278
  5. Step 5: Solve for x
    x = 4,954,034,702,161,278/60,571,811.80
  6. Step 6: Final answer
    x = 81,787,791.30

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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.