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Finding the Third Proportional to 70,385,218 and 147,205,804

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Solution

The third proportional to 70,385,218 and 147,205,804 is: 307,870,734.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,385,218 : 147,205,804 = 147,205,804 : x
  2. Step 2: Convert to fraction form
    70,385,218/147,205,804 = 147,205,804/x
  3. Step 3: Cross multiply
    70,385,218x = 147,205,804 × 147,205,804
  4. Step 4: Simplify right side
    70,385,218x = 21,669,548,731,286,416
  5. Step 5: Solve for x
    x = 21,669,548,731,286,416/70,385,218
  6. Step 6: Final answer
    x = 307,870,734.04

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.