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Finding the Third Proportional to 136,811,338.88 and 212,019,945.19

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Solution

The third proportional to 136,811,338.88 and 212,019,945.19 is: 328,572,598.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,811,338.88 : 212,019,945.19 = 212,019,945.19 : x
  2. Step 2: Convert to fraction form
    136,811,338.88/212,019,945.19 = 212,019,945.19/x
  3. Step 3: Cross multiply
    136,811,338.88x = 212,019,945.19 × 212,019,945.19
  4. Step 4: Simplify right side
    136,811,338.88x = 44,952,457,157,310,504
  5. Step 5: Solve for x
    x = 44,952,457,157,310,504/136,811,338.88
  6. Step 6: Final answer
    x = 328,572,598.78

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.