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Finding the Fourth Proportional to 226,639.94, 312,770.79 and 124,672.98

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Solution

The fourth proportional to 226,639.94, 312,770.79 and 124,672.98 is: 172,052.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,639.94 : 312,770.79 = 124,672.98 : x
  2. Step 2: Convert to fraction form
    226,639.94/312,770.79 = 124,672.98/x
  3. Step 3: Cross multiply
    226,639.94x = 312,770.79 × 124,672.98
  4. Step 4: Simplify right side
    226,639.94x = 38,994,066,446.25
  5. Step 5: Solve for x
    x = 38,994,066,446.25/226,639.94
  6. Step 6: Final answer
    x = 172,052.93

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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.