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Finding the Fourth Proportional to 93,980.12, 140,974.95 and 27,425.30

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Solution

The fourth proportional to 93,980.12, 140,974.95 and 27,425.30 is: 41,139.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,980.12 : 140,974.95 = 27,425.30 : x
  2. Step 2: Convert to fraction form
    93,980.12/140,974.95 = 27,425.30/x
  3. Step 3: Cross multiply
    93,980.12x = 140,974.95 × 27,425.30
  4. Step 4: Simplify right side
    93,980.12x = 3,866,280,296.24
  5. Step 5: Solve for x
    x = 3,866,280,296.24/93,980.12
  6. Step 6: Final answer
    x = 41,139.34

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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.