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Finding the Third Proportional to 109,931,138 and 238,804,612

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Solution

The third proportional to 109,931,138 and 238,804,612 is: 518,757,867.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,931,138 : 238,804,612 = 238,804,612 : x
  2. Step 2: Convert to fraction form
    109,931,138/238,804,612 = 238,804,612/x
  3. Step 3: Cross multiply
    109,931,138x = 238,804,612 × 238,804,612
  4. Step 4: Simplify right side
    109,931,138x = 57,027,642,712,470,544
  5. Step 5: Solve for x
    x = 57,027,642,712,470,544/109,931,138
  6. Step 6: Final answer
    x = 518,757,867.42

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These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.