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Finding the Third Proportional to 188,838,721.22 and 406,375,256.44

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Solution

The third proportional to 188,838,721.22 and 406,375,256.44 is: 874,507,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,838,721.22 : 406,375,256.44 = 406,375,256.44 : x
  2. Step 2: Convert to fraction form
    188,838,721.22/406,375,256.44 = 406,375,256.44/x
  3. Step 3: Cross multiply
    188,838,721.22x = 406,375,256.44 × 406,375,256.44
  4. Step 4: Simplify right side
    188,838,721.22x = 165,140,849,049,382,208
  5. Step 5: Solve for x
    x = 165,140,849,049,382,208/188,838,721.22
  6. Step 6: Final answer
    x = 874,507,346.70

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.