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Finding the Third Proportional to 76,997,062.50 and 171,209,455.50

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Solution

The third proportional to 76,997,062.50 and 171,209,455.50 is: 380,698,648.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,997,062.50 : 171,209,455.50 = 171,209,455.50 : x
  2. Step 2: Convert to fraction form
    76,997,062.50/171,209,455.50 = 171,209,455.50/x
  3. Step 3: Cross multiply
    76,997,062.50x = 171,209,455.50 × 171,209,455.50
  4. Step 4: Simplify right side
    76,997,062.50x = 29,312,677,652,606,480
  5. Step 5: Solve for x
    x = 29,312,677,652,606,480/76,997,062.50
  6. Step 6: Final answer
    x = 380,698,648.76

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.