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Finding the Fourth Proportional to 178,716.88, 246,631.88 and 98,151.64

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Solution

The fourth proportional to 178,716.88, 246,631.88 and 98,151.64 is: 135,450.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,716.88 : 246,631.88 = 98,151.64 : x
  2. Step 2: Convert to fraction form
    178,716.88/246,631.88 = 98,151.64/x
  3. Step 3: Cross multiply
    178,716.88x = 246,631.88 × 98,151.64
  4. Step 4: Simplify right side
    178,716.88x = 24,207,323,498.28
  5. Step 5: Solve for x
    x = 24,207,323,498.28/178,716.88
  6. Step 6: Final answer
    x = 135,450.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.