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Finding the Third Proportional to 72,072,621 and 155,482,650

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Solution

The third proportional to 72,072,621 and 155,482,650 is: 335,423,550.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,072,621 : 155,482,650 = 155,482,650 : x
  2. Step 2: Convert to fraction form
    72,072,621/155,482,650 = 155,482,650/x
  3. Step 3: Cross multiply
    72,072,621x = 155,482,650 × 155,482,650
  4. Step 4: Simplify right side
    72,072,621x = 24,174,854,451,022,500
  5. Step 5: Solve for x
    x = 24,174,854,451,022,500/72,072,621
  6. Step 6: Final answer
    x = 335,423,550.80

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.