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Finding the Fourth Proportional to 68,891.04, 103,346.88 and 29,448

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Solution

The fourth proportional to 68,891.04, 103,346.88 and 29,448 is: 44,176.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,891.04 : 103,346.88 = 29,448 : x
  2. Step 2: Convert to fraction form
    68,891.04/103,346.88 = 29,448/x
  3. Step 3: Cross multiply
    68,891.04x = 103,346.88 × 29,448
  4. Step 4: Simplify right side
    68,891.04x = 3,043,358,922.24
  5. Step 5: Solve for x
    x = 3,043,358,922.24/68,891.04
  6. Step 6: Final answer
    x = 44,176.41

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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.