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Finding the Third Proportional to 55,367,066 and 121,156,159

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Solution

The third proportional to 55,367,066 and 121,156,159 is: 265,118,163.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,367,066 : 121,156,159 = 121,156,159 : x
  2. Step 2: Convert to fraction form
    55,367,066/121,156,159 = 121,156,159/x
  3. Step 3: Cross multiply
    55,367,066x = 121,156,159 × 121,156,159
  4. Step 4: Simplify right side
    55,367,066x = 14,678,814,863,633,280
  5. Step 5: Solve for x
    x = 14,678,814,863,633,280/55,367,066
  6. Step 6: Final answer
    x = 265,118,163.63

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.