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Finding the Third Proportional to 58,887,660 and 128,692,820

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Solution

The third proportional to 58,887,660 and 128,692,820 is: 281,244,694.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,887,660 : 128,692,820 = 128,692,820 : x
  2. Step 2: Convert to fraction form
    58,887,660/128,692,820 = 128,692,820/x
  3. Step 3: Cross multiply
    58,887,660x = 128,692,820 × 128,692,820
  4. Step 4: Simplify right side
    58,887,660x = 16,561,841,919,552,400
  5. Step 5: Solve for x
    x = 16,561,841,919,552,400/58,887,660
  6. Step 6: Final answer
    x = 281,244,694.04

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.