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Finding the Fourth Proportional to 478,716.82, 718,093.46 and 179,165.86

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Solution

The fourth proportional to 478,716.82, 718,093.46 and 179,165.86 is: 268,755.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,716.82 : 718,093.46 = 179,165.86 : x
  2. Step 2: Convert to fraction form
    478,716.82/718,093.46 = 179,165.86/x
  3. Step 3: Cross multiply
    478,716.82x = 718,093.46 × 179,165.86
  4. Step 4: Simplify right side
    478,716.82x = 128,657,831,425.45
  5. Step 5: Solve for x
    x = 128,657,831,425.45/478,716.82
  6. Step 6: Final answer
    x = 268,755.61

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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.