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Finding the Third Proportional to 143,345,441 and 221,355,136

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Solution

The third proportional to 143,345,441 and 221,355,136 is: 341,818,308.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,345,441 : 221,355,136 = 221,355,136 : x
  2. Step 2: Convert to fraction form
    143,345,441/221,355,136 = 221,355,136/x
  3. Step 3: Cross multiply
    143,345,441x = 221,355,136 × 221,355,136
  4. Step 4: Simplify right side
    143,345,441x = 48,998,096,233,578,496
  5. Step 5: Solve for x
    x = 48,998,096,233,578,496/143,345,441
  6. Step 6: Final answer
    x = 341,818,308.92

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.