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Finding the Third Proportional to 118,321,412 and 258,418,088

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Solution

The third proportional to 118,321,412 and 258,418,088 is: 564,394,111.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,321,412 : 258,418,088 = 258,418,088 : x
  2. Step 2: Convert to fraction form
    118,321,412/258,418,088 = 258,418,088/x
  3. Step 3: Cross multiply
    118,321,412x = 258,418,088 × 258,418,088
  4. Step 4: Simplify right side
    118,321,412x = 66,779,908,205,575,744
  5. Step 5: Solve for x
    x = 66,779,908,205,575,744/118,321,412
  6. Step 6: Final answer
    x = 564,394,111.57

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.