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Finding the Fourth Proportional to 157,361.88, 236,086.62 and 68,623.20

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Solution

The fourth proportional to 157,361.88, 236,086.62 and 68,623.20 is: 102,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,361.88 : 236,086.62 = 68,623.20 : x
  2. Step 2: Convert to fraction form
    157,361.88/236,086.62 = 68,623.20/x
  3. Step 3: Cross multiply
    157,361.88x = 236,086.62 × 68,623.20
  4. Step 4: Simplify right side
    157,361.88x = 16,201,019,341.58
  5. Step 5: Solve for x
    x = 16,201,019,341.58/157,361.88
  6. Step 6: Final answer
    x = 102,953.90

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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.