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Finding the Fourth Proportional to 93,934.80, 140,907.60 and 27,385.20

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Solution

The fourth proportional to 93,934.80, 140,907.60 and 27,385.20 is: 41,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,934.80 : 140,907.60 = 27,385.20 : x
  2. Step 2: Convert to fraction form
    93,934.80/140,907.60 = 27,385.20/x
  3. Step 3: Cross multiply
    93,934.80x = 140,907.60 × 27,385.20
  4. Step 4: Simplify right side
    93,934.80x = 3,858,782,807.52
  5. Step 5: Solve for x
    x = 3,858,782,807.52/93,934.80
  6. Step 6: Final answer
    x = 41,079.37

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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.