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Finding the Third Proportional to 86,454,666 and 133,721,985

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Solution

The third proportional to 86,454,666 and 133,721,985 is: 206,831,743.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,454,666 : 133,721,985 = 133,721,985 : x
  2. Step 2: Convert to fraction form
    86,454,666/133,721,985 = 133,721,985/x
  3. Step 3: Cross multiply
    86,454,666x = 133,721,985 × 133,721,985
  4. Step 4: Simplify right side
    86,454,666x = 17,881,569,272,340,224
  5. Step 5: Solve for x
    x = 17,881,569,272,340,224/86,454,666
  6. Step 6: Final answer
    x = 206,831,743.15

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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.