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Finding the Fourth Proportional to 79,287.66, 118,824.30 and 29,320.92

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Solution

The fourth proportional to 79,287.66, 118,824.30 and 29,320.92 is: 43,941.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,287.66 : 118,824.30 = 29,320.92 : x
  2. Step 2: Convert to fraction form
    79,287.66/118,824.30 = 29,320.92/x
  3. Step 3: Cross multiply
    79,287.66x = 118,824.30 × 29,320.92
  4. Step 4: Simplify right side
    79,287.66x = 3,484,037,794.36
  5. Step 5: Solve for x
    x = 3,484,037,794.36/79,287.66
  6. Step 6: Final answer
    x = 43,941.74

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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.