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Finding the Third Proportional to 90,772,447 and 196,668,350

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Solution

The third proportional to 90,772,447 and 196,668,350 is: 426,103,307.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,772,447 : 196,668,350 = 196,668,350 : x
  2. Step 2: Convert to fraction form
    90,772,447/196,668,350 = 196,668,350/x
  3. Step 3: Cross multiply
    90,772,447x = 196,668,350 × 196,668,350
  4. Step 4: Simplify right side
    90,772,447x = 38,678,439,891,722,496
  5. Step 5: Solve for x
    x = 38,678,439,891,722,496/90,772,447
  6. Step 6: Final answer
    x = 426,103,307.45

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.