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Finding the Third Proportional to 148,586,940 and 312,214,392

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Solution

The third proportional to 148,586,940 and 312,214,392 is: 656,032,263.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,586,940 : 312,214,392 = 312,214,392 : x
  2. Step 2: Convert to fraction form
    148,586,940/312,214,392 = 312,214,392/x
  3. Step 3: Cross multiply
    148,586,940x = 312,214,392 × 312,214,392
  4. Step 4: Simplify right side
    148,586,940x = 97,477,826,571,929,664
  5. Step 5: Solve for x
    x = 97,477,826,571,929,664/148,586,940
  6. Step 6: Final answer
    x = 656,032,263.48

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.