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Finding the Fourth Proportional to 79,266, 118,815.20 and 29,314.04

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Solution

The fourth proportional to 79,266, 118,815.20 and 29,314.04 is: 43,940.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,266 : 118,815.20 = 29,314.04 : x
  2. Step 2: Convert to fraction form
    79,266/118,815.20 = 29,314.04/x
  3. Step 3: Cross multiply
    79,266x = 118,815.20 × 29,314.04
  4. Step 4: Simplify right side
    79,266x = 3,482,953,525.41
  5. Step 5: Solve for x
    x = 3,482,953,525.41/79,266
  6. Step 6: Final answer
    x = 43,940.07

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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.