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Finding the Third Proportional to 86,145,502 and 130,243,939

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Solution

The third proportional to 86,145,502 and 130,243,939 is: 196,916,649.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,145,502 : 130,243,939 = 130,243,939 : x
  2. Step 2: Convert to fraction form
    86,145,502/130,243,939 = 130,243,939/x
  3. Step 3: Cross multiply
    86,145,502x = 130,243,939 × 130,243,939
  4. Step 4: Simplify right side
    86,145,502x = 16,963,483,646,235,720
  5. Step 5: Solve for x
    x = 16,963,483,646,235,720/86,145,502
  6. Step 6: Final answer
    x = 196,916,649.77

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.