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Finding the Third Proportional to 58,689,255 and 128,715,906

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Solution

The third proportional to 58,689,255 and 128,715,906 is: 282,296,724.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,689,255 : 128,715,906 = 128,715,906 : x
  2. Step 2: Convert to fraction form
    58,689,255/128,715,906 = 128,715,906/x
  3. Step 3: Cross multiply
    58,689,255x = 128,715,906 × 128,715,906
  4. Step 4: Simplify right side
    58,689,255x = 16,567,784,457,400,836
  5. Step 5: Solve for x
    x = 16,567,784,457,400,836/58,689,255
  6. Step 6: Final answer
    x = 282,296,724.63

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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.