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Finding the Fourth Proportional to 225,913.32, 311,755.62 and 125,310.44

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Solution

The fourth proportional to 225,913.32, 311,755.62 and 125,310.44 is: 172,925.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,913.32 : 311,755.62 = 125,310.44 : x
  2. Step 2: Convert to fraction form
    225,913.32/311,755.62 = 125,310.44/x
  3. Step 3: Cross multiply
    225,913.32x = 311,755.62 × 125,310.44
  4. Step 4: Simplify right side
    225,913.32x = 39,066,233,914.67
  5. Step 5: Solve for x
    x = 39,066,233,914.67/225,913.32
  6. Step 6: Final answer
    x = 172,925.77

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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.