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Finding the Third Proportional to 90,754,518 and 137,211,961

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Solution

The third proportional to 90,754,518 and 137,211,961 is: 207,451,074.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,754,518 : 137,211,961 = 137,211,961 : x
  2. Step 2: Convert to fraction form
    90,754,518/137,211,961 = 137,211,961/x
  3. Step 3: Cross multiply
    90,754,518x = 137,211,961 × 137,211,961
  4. Step 4: Simplify right side
    90,754,518x = 18,827,122,241,465,520
  5. Step 5: Solve for x
    x = 18,827,122,241,465,520/90,754,518
  6. Step 6: Final answer
    x = 207,451,074.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.