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Finding the Third Proportional to 43,645,778 and 72,740,033

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Solution

The third proportional to 43,645,778 and 72,740,033 is: 121,228,504.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,645,778 : 72,740,033 = 72,740,033 : x
  2. Step 2: Convert to fraction form
    43,645,778/72,740,033 = 72,740,033/x
  3. Step 3: Cross multiply
    43,645,778x = 72,740,033 × 72,740,033
  4. Step 4: Simplify right side
    43,645,778x = 5,291,112,400,841,089
  5. Step 5: Solve for x
    x = 5,291,112,400,841,089/43,645,778
  6. Step 6: Final answer
    x = 121,228,504.64

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.