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Finding the Fourth Proportional to 79,260, 118,806.21 and 29,308.02

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Solution

The fourth proportional to 79,260, 118,806.21 and 29,308.02 is: 43,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,260 : 118,806.21 = 29,308.02 : x
  2. Step 2: Convert to fraction form
    79,260/118,806.21 = 29,308.02/x
  3. Step 3: Cross multiply
    79,260x = 118,806.21 × 29,308.02
  4. Step 4: Simplify right side
    79,260x = 3,481,974,778.80
  5. Step 5: Solve for x
    x = 3,481,974,778.80/79,260
  6. Step 6: Final answer
    x = 43,931.05

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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.