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Finding the Fourth Proportional to 79,310.25, 118,928.52 and 29,388.33

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Solution

The fourth proportional to 79,310.25, 118,928.52 and 29,388.33 is: 44,068.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,310.25 : 118,928.52 = 29,388.33 : x
  2. Step 2: Convert to fraction form
    79,310.25/118,928.52 = 29,388.33/x
  3. Step 3: Cross multiply
    79,310.25x = 118,928.52 × 29,388.33
  4. Step 4: Simplify right side
    79,310.25x = 3,495,110,592.17
  5. Step 5: Solve for x
    x = 3,495,110,592.17/79,310.25
  6. Step 6: Final answer
    x = 44,068.84

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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.