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Finding the Third Proportional to 74,134,512 and 154,405,089

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Solution

The third proportional to 74,134,512 and 154,405,089 is: 321,590,186.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,134,512 : 154,405,089 = 154,405,089 : x
  2. Step 2: Convert to fraction form
    74,134,512/154,405,089 = 154,405,089/x
  3. Step 3: Cross multiply
    74,134,512x = 154,405,089 × 154,405,089
  4. Step 4: Simplify right side
    74,134,512x = 23,840,931,509,097,920
  5. Step 5: Solve for x
    x = 23,840,931,509,097,920/74,134,512
  6. Step 6: Final answer
    x = 321,590,186.08

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.