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Finding the Third Proportional to 59,864,047 and 128,676,789

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Solution

The third proportional to 59,864,047 and 128,676,789 is: 276,588,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,864,047 : 128,676,789 = 128,676,789 : x
  2. Step 2: Convert to fraction form
    59,864,047/128,676,789 = 128,676,789/x
  3. Step 3: Cross multiply
    59,864,047x = 128,676,789 × 128,676,789
  4. Step 4: Simplify right side
    59,864,047x = 16,557,716,027,350,520
  5. Step 5: Solve for x
    x = 16,557,716,027,350,520/59,864,047
  6. Step 6: Final answer
    x = 276,588,651.40

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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.