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Finding the Third Proportional to 74,208,809 and 115,553,483

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Solution

The third proportional to 74,208,809 and 115,553,483 is: 179,932,916.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,208,809 : 115,553,483 = 115,553,483 : x
  2. Step 2: Convert to fraction form
    74,208,809/115,553,483 = 115,553,483/x
  3. Step 3: Cross multiply
    74,208,809x = 115,553,483 × 115,553,483
  4. Step 4: Simplify right side
    74,208,809x = 13,352,607,433,431,288
  5. Step 5: Solve for x
    x = 13,352,607,433,431,288/74,208,809
  6. Step 6: Final answer
    x = 179,932,916.50

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.