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Finding the Fourth Proportional to 118,761.23, 163,893.14 and 67,772.94

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Solution

The fourth proportional to 118,761.23, 163,893.14 and 67,772.94 is: 93,528.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,761.23 : 163,893.14 = 67,772.94 : x
  2. Step 2: Convert to fraction form
    118,761.23/163,893.14 = 67,772.94/x
  3. Step 3: Cross multiply
    118,761.23x = 163,893.14 × 67,772.94
  4. Step 4: Simplify right side
    118,761.23x = 11,107,519,943.63
  5. Step 5: Solve for x
    x = 11,107,519,943.63/118,761.23
  6. Step 6: Final answer
    x = 93,528.17

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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.