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Finding the Third Proportional to 90,979,453.13 and 199,276,827.75

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Solution

The third proportional to 90,979,453.13 and 199,276,827.75 is: 436,485,961.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,979,453.13 : 199,276,827.75 = 199,276,827.75 : x
  2. Step 2: Convert to fraction form
    90,979,453.13/199,276,827.75 = 199,276,827.75/x
  3. Step 3: Cross multiply
    90,979,453.13x = 199,276,827.75 × 199,276,827.75
  4. Step 4: Simplify right side
    90,979,453.13x = 39,711,254,078,103,168
  5. Step 5: Solve for x
    x = 39,711,254,078,103,168/90,979,453.13
  6. Step 6: Final answer
    x = 436,485,961.54

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.