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Finding the Third Proportional to 56,363,221 and 87,272,157

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Solution

The third proportional to 56,363,221 and 87,272,157 is: 135,131,194.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,363,221 : 87,272,157 = 87,272,157 : x
  2. Step 2: Convert to fraction form
    56,363,221/87,272,157 = 87,272,157/x
  3. Step 3: Cross multiply
    56,363,221x = 87,272,157 × 87,272,157
  4. Step 4: Simplify right side
    56,363,221x = 7,616,429,387,432,649
  5. Step 5: Solve for x
    x = 7,616,429,387,432,649/56,363,221
  6. Step 6: Final answer
    x = 135,131,194.64

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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.