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Finding the Fourth Proportional to 172,611,141.22, 259,018,863.18 and 63,512,926.20

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Solution

The fourth proportional to 172,611,141.22, 259,018,863.18 and 63,512,926.20 is: 95,306,976.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,611,141.22 : 259,018,863.18 = 63,512,926.20 : x
  2. Step 2: Convert to fraction form
    172,611,141.22/259,018,863.18 = 63,512,926.20/x
  3. Step 3: Cross multiply
    172,611,141.22x = 259,018,863.18 × 63,512,926.20
  4. Step 4: Simplify right side
    172,611,141.22x = 16,451,045,941,559,238
  5. Step 5: Solve for x
    x = 16,451,045,941,559,238/172,611,141.22
  6. Step 6: Final answer
    x = 95,306,976.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.