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Finding the Third Proportional to 69,226,929 and 147,721,230

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Solution

The third proportional to 69,226,929 and 147,721,230 is: 315,217,822.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,226,929 : 147,721,230 = 147,721,230 : x
  2. Step 2: Convert to fraction form
    69,226,929/147,721,230 = 147,721,230/x
  3. Step 3: Cross multiply
    69,226,929x = 147,721,230 × 147,721,230
  4. Step 4: Simplify right side
    69,226,929x = 21,821,561,792,712,900
  5. Step 5: Solve for x
    x = 21,821,561,792,712,900/69,226,929
  6. Step 6: Final answer
    x = 315,217,822.14

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.