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Finding the Third Proportional to 62,987,226 and 90,071,841

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Solution

The third proportional to 62,987,226 and 90,071,841 is: 128,802,886.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,987,226 : 90,071,841 = 90,071,841 : x
  2. Step 2: Convert to fraction form
    62,987,226/90,071,841 = 90,071,841/x
  3. Step 3: Cross multiply
    62,987,226x = 90,071,841 × 90,071,841
  4. Step 4: Simplify right side
    62,987,226x = 8,112,936,541,129,281
  5. Step 5: Solve for x
    x = 8,112,936,541,129,281/62,987,226
  6. Step 6: Final answer
    x = 128,802,886.81

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.