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Finding the Fourth Proportional to 67,978.60, 93,819.07 and 41,121.04

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Solution

The fourth proportional to 67,978.60, 93,819.07 and 41,121.04 is: 56,752.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,978.60 : 93,819.07 = 41,121.04 : x
  2. Step 2: Convert to fraction form
    67,978.60/93,819.07 = 41,121.04/x
  3. Step 3: Cross multiply
    67,978.60x = 93,819.07 × 41,121.04
  4. Step 4: Simplify right side
    67,978.60x = 3,857,937,730.23
  5. Step 5: Solve for x
    x = 3,857,937,730.23/67,978.60
  6. Step 6: Final answer
    x = 56,752.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.