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Finding the Third Proportional to 66,090,672 and 143,161,056

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Solution

The third proportional to 66,090,672 and 143,161,056 is: 310,105,606.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,090,672 : 143,161,056 = 143,161,056 : x
  2. Step 2: Convert to fraction form
    66,090,672/143,161,056 = 143,161,056/x
  3. Step 3: Cross multiply
    66,090,672x = 143,161,056 × 143,161,056
  4. Step 4: Simplify right side
    66,090,672x = 20,495,087,955,035,136
  5. Step 5: Solve for x
    x = 20,495,087,955,035,136/66,090,672
  6. Step 6: Final answer
    x = 310,105,606.96

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.