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Finding the Third Proportional to 108,781,471.13 and 168,686,727.19

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Solution

The third proportional to 108,781,471.13 and 168,686,727.19 is: 261,581,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,781,471.13 : 168,686,727.19 = 168,686,727.19 : x
  2. Step 2: Convert to fraction form
    108,781,471.13/168,686,727.19 = 168,686,727.19/x
  3. Step 3: Cross multiply
    108,781,471.13x = 168,686,727.19 × 168,686,727.19
  4. Step 4: Simplify right side
    108,781,471.13x = 28,455,211,929,230,052
  5. Step 5: Solve for x
    x = 28,455,211,929,230,052/108,781,471.13
  6. Step 6: Final answer
    x = 261,581,422.23

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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.