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Finding the Third Proportional to 79,289,905.50 and 171,808,630.50

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Solution

The third proportional to 79,289,905.50 and 171,808,630.50 is: 372,282,011.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,289,905.50 : 171,808,630.50 = 171,808,630.50 : x
  2. Step 2: Convert to fraction form
    79,289,905.50/171,808,630.50 = 171,808,630.50/x
  3. Step 3: Cross multiply
    79,289,905.50x = 171,808,630.50 × 171,808,630.50
  4. Step 4: Simplify right side
    79,289,905.50x = 29,518,205,514,285,532
  5. Step 5: Solve for x
    x = 29,518,205,514,285,532/79,289,905.50
  6. Step 6: Final answer
    x = 372,282,011.54

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Why These Related Problems?

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