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Finding the Fourth Proportional to 78,893.56, 118,340.34 and 26,304.04

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Solution

The fourth proportional to 78,893.56, 118,340.34 and 26,304.04 is: 39,456.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,893.56 : 118,340.34 = 26,304.04 : x
  2. Step 2: Convert to fraction form
    78,893.56/118,340.34 = 26,304.04/x
  3. Step 3: Cross multiply
    78,893.56x = 118,340.34 × 26,304.04
  4. Step 4: Simplify right side
    78,893.56x = 3,112,829,036.97
  5. Step 5: Solve for x
    x = 3,112,829,036.97/78,893.56
  6. Step 6: Final answer
    x = 39,456.06

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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.