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Finding the Third Proportional to 188,315,208 and 399,031,776

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Solution

The third proportional to 188,315,208 and 399,031,776 is: 845,531,064.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,315,208 : 399,031,776 = 399,031,776 : x
  2. Step 2: Convert to fraction form
    188,315,208/399,031,776 = 399,031,776/x
  3. Step 3: Cross multiply
    188,315,208x = 399,031,776 × 399,031,776
  4. Step 4: Simplify right side
    188,315,208x = 159,226,358,257,714,176
  5. Step 5: Solve for x
    x = 159,226,358,257,714,176/188,315,208
  6. Step 6: Final answer
    x = 845,531,064.37

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.