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Finding the Third Proportional to 86,454,639 and 133,721,948

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Solution

The third proportional to 86,454,639 and 133,721,948 is: 206,831,693.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,454,639 : 133,721,948 = 133,721,948 : x
  2. Step 2: Convert to fraction form
    86,454,639/133,721,948 = 133,721,948/x
  3. Step 3: Cross multiply
    86,454,639x = 133,721,948 × 133,721,948
  4. Step 4: Simplify right side
    86,454,639x = 17,881,559,376,914,704
  5. Step 5: Solve for x
    x = 17,881,559,376,914,704/86,454,639
  6. Step 6: Final answer
    x = 206,831,693.29

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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.