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Finding the Fourth Proportional to 47,747,445.30, 71,621,167.95 and 47,747,445.30

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Solution

The fourth proportional to 47,747,445.30, 71,621,167.95 and 47,747,445.30 is: 71,621,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,747,445.30 : 71,621,167.95 = 47,747,445.30 : x
  2. Step 2: Convert to fraction form
    47,747,445.30/71,621,167.95 = 47,747,445.30/x
  3. Step 3: Cross multiply
    47,747,445.30x = 71,621,167.95 × 47,747,445.30
  4. Step 4: Simplify right side
    47,747,445.30x = 3,419,727,799,014,738
  5. Step 5: Solve for x
    x = 3,419,727,799,014,738/47,747,445.30
  6. Step 6: Final answer
    x = 71,621,167.95

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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.