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Finding the Third Proportional to 111,447,570 and 172,214,811

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Solution

The third proportional to 111,447,570 and 172,214,811 is: 266,115,637.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,447,570 : 172,214,811 = 172,214,811 : x
  2. Step 2: Convert to fraction form
    111,447,570/172,214,811 = 172,214,811/x
  3. Step 3: Cross multiply
    111,447,570x = 172,214,811 × 172,214,811
  4. Step 4: Simplify right side
    111,447,570x = 29,657,941,127,765,720
  5. Step 5: Solve for x
    x = 29,657,941,127,765,720/111,447,570
  6. Step 6: Final answer
    x = 266,115,637.40

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.