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Finding the Fourth Proportional to 47,908,367.40, 71,873,048.70 and 15,554,764.20

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Solution

The fourth proportional to 47,908,367.40, 71,873,048.70 and 15,554,764.20 is: 23,335,554.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,908,367.40 : 71,873,048.70 = 15,554,764.20 : x
  2. Step 2: Convert to fraction form
    47,908,367.40/71,873,048.70 = 15,554,764.20/x
  3. Step 3: Cross multiply
    47,908,367.40x = 71,873,048.70 × 15,554,764.20
  4. Step 4: Simplify right side
    47,908,367.40x = 1,117,968,324,863,616.50
  5. Step 5: Solve for x
    x = 1,117,968,324,863,616.50/47,908,367.40
  6. Step 6: Final answer
    x = 23,335,554.63

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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.