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Finding the Third Proportional to 72,726,246 and 156,989,192

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Solution

The third proportional to 72,726,246 and 156,989,192 is: 338,881,872.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,726,246 : 156,989,192 = 156,989,192 : x
  2. Step 2: Convert to fraction form
    72,726,246/156,989,192 = 156,989,192/x
  3. Step 3: Cross multiply
    72,726,246x = 156,989,192 × 156,989,192
  4. Step 4: Simplify right side
    72,726,246x = 24,645,606,404,812,864
  5. Step 5: Solve for x
    x = 24,645,606,404,812,864/72,726,246
  6. Step 6: Final answer
    x = 338,881,872.23

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.