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Finding the Third Proportional to 163,923,886 and 249,242,407

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Solution

The third proportional to 163,923,886 and 249,242,407 is: 378,967,208.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,923,886 : 249,242,407 = 249,242,407 : x
  2. Step 2: Convert to fraction form
    163,923,886/249,242,407 = 249,242,407/x
  3. Step 3: Cross multiply
    163,923,886x = 249,242,407 × 249,242,407
  4. Step 4: Simplify right side
    163,923,886x = 62,121,777,447,153,648
  5. Step 5: Solve for x
    x = 62,121,777,447,153,648/163,923,886
  6. Step 6: Final answer
    x = 378,967,208.28

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.