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Finding the Third Proportional to 67,918,456.13 and 105,913,311.75

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Solution

The third proportional to 67,918,456.13 and 105,913,311.75 is: 165,163,200.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,918,456.13 : 105,913,311.75 = 105,913,311.75 : x
  2. Step 2: Convert to fraction form
    67,918,456.13/105,913,311.75 = 105,913,311.75/x
  3. Step 3: Cross multiply
    67,918,456.13x = 105,913,311.75 × 105,913,311.75
  4. Step 4: Simplify right side
    67,918,456.13x = 11,217,629,605,852,688
  5. Step 5: Solve for x
    x = 11,217,629,605,852,688/67,918,456.13
  6. Step 6: Final answer
    x = 165,163,200.78

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.