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Finding the Third Proportional to 77,738,282 and 170,120,788

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Solution

The third proportional to 77,738,282 and 170,120,788 is: 372,288,681.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,738,282 : 170,120,788 = 170,120,788 : x
  2. Step 2: Convert to fraction form
    77,738,282/170,120,788 = 170,120,788/x
  3. Step 3: Cross multiply
    77,738,282x = 170,120,788 × 170,120,788
  4. Step 4: Simplify right side
    77,738,282x = 28,941,082,509,740,944
  5. Step 5: Solve for x
    x = 28,941,082,509,740,944/77,738,282
  6. Step 6: Final answer
    x = 372,288,681.52

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.