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Finding the Third Proportional to 86,197,905 and 133,838,679

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Solution

The third proportional to 86,197,905 and 133,838,679 is: 207,810,062.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,197,905 : 133,838,679 = 133,838,679 : x
  2. Step 2: Convert to fraction form
    86,197,905/133,838,679 = 133,838,679/x
  3. Step 3: Cross multiply
    86,197,905x = 133,838,679 × 133,838,679
  4. Step 4: Simplify right side
    86,197,905x = 17,912,791,996,465,040
  5. Step 5: Solve for x
    x = 17,912,791,996,465,040/86,197,905
  6. Step 6: Final answer
    x = 207,810,062.16

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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.