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Finding the Third Proportional to 196,929,157 and 428,535,386

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Solution

The third proportional to 196,929,157 and 428,535,386 is: 932,531,169.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,929,157 : 428,535,386 = 428,535,386 : x
  2. Step 2: Convert to fraction form
    196,929,157/428,535,386 = 428,535,386/x
  3. Step 3: Cross multiply
    196,929,157x = 428,535,386 × 428,535,386
  4. Step 4: Simplify right side
    196,929,157x = 183,642,577,054,168,992
  5. Step 5: Solve for x
    x = 183,642,577,054,168,992/196,929,157
  6. Step 6: Final answer
    x = 932,531,169.34

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.