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Finding the Third Proportional to 188,554,090 and 405,925,052

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Solution

The third proportional to 188,554,090 and 405,925,052 is: 873,887,953.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,554,090 : 405,925,052 = 405,925,052 : x
  2. Step 2: Convert to fraction form
    188,554,090/405,925,052 = 405,925,052/x
  3. Step 3: Cross multiply
    188,554,090x = 405,925,052 × 405,925,052
  4. Step 4: Simplify right side
    188,554,090x = 164,775,147,841,202,688
  5. Step 5: Solve for x
    x = 164,775,147,841,202,688/188,554,090
  6. Step 6: Final answer
    x = 873,887,953.54

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.