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Finding the Fourth Proportional to 245,361.94, 368,042.46 and 76,895.17

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Solution

The fourth proportional to 245,361.94, 368,042.46 and 76,895.17 is: 115,342.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,361.94 : 368,042.46 = 76,895.17 : x
  2. Step 2: Convert to fraction form
    245,361.94/368,042.46 = 76,895.17/x
  3. Step 3: Cross multiply
    245,361.94x = 368,042.46 × 76,895.17
  4. Step 4: Simplify right side
    245,361.94x = 28,300,687,528.92
  5. Step 5: Solve for x
    x = 28,300,687,528.92/245,361.94
  6. Step 6: Final answer
    x = 115,342.61

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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.