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Finding the Third Proportional to 117,220,440 and 172,318,488

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Solution

The third proportional to 117,220,440 and 172,318,488 is: 253,314,706.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,220,440 : 172,318,488 = 172,318,488 : x
  2. Step 2: Convert to fraction form
    117,220,440/172,318,488 = 172,318,488/x
  3. Step 3: Cross multiply
    117,220,440x = 172,318,488 × 172,318,488
  4. Step 4: Simplify right side
    117,220,440x = 29,693,661,306,606,144
  5. Step 5: Solve for x
    x = 29,693,661,306,606,144/117,220,440
  6. Step 6: Final answer
    x = 253,314,706.09

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.