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Finding the Third Proportional to 79,342,054 and 122,603,709

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Solution

The third proportional to 79,342,054 and 122,603,709 is: 189,453,999.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,342,054 : 122,603,709 = 122,603,709 : x
  2. Step 2: Convert to fraction form
    79,342,054/122,603,709 = 122,603,709/x
  3. Step 3: Cross multiply
    79,342,054x = 122,603,709 × 122,603,709
  4. Step 4: Simplify right side
    79,342,054x = 15,031,669,460,556,680
  5. Step 5: Solve for x
    x = 15,031,669,460,556,680/79,342,054
  6. Step 6: Final answer
    x = 189,453,999.52

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.