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Finding the Third Proportional to 51,043,928 and 78,458,184

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Solution

The third proportional to 51,043,928 and 78,458,184 is: 120,595,864.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,043,928 : 78,458,184 = 78,458,184 : x
  2. Step 2: Convert to fraction form
    51,043,928/78,458,184 = 78,458,184/x
  3. Step 3: Cross multiply
    51,043,928x = 78,458,184 × 78,458,184
  4. Step 4: Simplify right side
    51,043,928x = 6,155,686,636,577,856
  5. Step 5: Solve for x
    x = 6,155,686,636,577,856/51,043,928
  6. Step 6: Final answer
    x = 120,595,864.73

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.