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Finding the Fourth Proportional to 78,948.88, 118,340.56 and 36,794.24

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Solution

The fourth proportional to 78,948.88, 118,340.56 and 36,794.24 is: 55,152.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,948.88 : 118,340.56 = 36,794.24 : x
  2. Step 2: Convert to fraction form
    78,948.88/118,340.56 = 36,794.24/x
  3. Step 3: Cross multiply
    78,948.88x = 118,340.56 × 36,794.24
  4. Step 4: Simplify right side
    78,948.88x = 4,354,250,966.37
  5. Step 5: Solve for x
    x = 4,354,250,966.37/78,948.88
  6. Step 6: Final answer
    x = 55,152.79

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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.