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Finding the Third Proportional to 73,339,540 and 155,421,570

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Solution

The third proportional to 73,339,540 and 155,421,570 is: 329,370,274.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,339,540 : 155,421,570 = 155,421,570 : x
  2. Step 2: Convert to fraction form
    73,339,540/155,421,570 = 155,421,570/x
  3. Step 3: Cross multiply
    73,339,540x = 155,421,570 × 155,421,570
  4. Step 4: Simplify right side
    73,339,540x = 24,155,864,421,264,900
  5. Step 5: Solve for x
    x = 24,155,864,421,264,900/73,339,540
  6. Step 6: Final answer
    x = 329,370,274.50

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.