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Finding the Fourth Proportional to 78,894.77, 118,343.19 and 26,304.27

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Solution

The fourth proportional to 78,894.77, 118,343.19 and 26,304.27 is: 39,456.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,894.77 : 118,343.19 = 26,304.27 : x
  2. Step 2: Convert to fraction form
    78,894.77/118,343.19 = 26,304.27/x
  3. Step 3: Cross multiply
    78,894.77x = 118,343.19 × 26,304.27
  4. Step 4: Simplify right side
    78,894.77x = 3,112,930,877.28
  5. Step 5: Solve for x
    x = 3,112,930,877.28/78,894.77
  6. Step 6: Final answer
    x = 39,456.75

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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.