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Finding the Fourth Proportional to 93,713.80, 140,619.30 and 41,128.60

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Solution

The fourth proportional to 93,713.80, 140,619.30 and 41,128.60 is: 61,714.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,713.80 : 140,619.30 = 41,128.60 : x
  2. Step 2: Convert to fraction form
    93,713.80/140,619.30 = 41,128.60/x
  3. Step 3: Cross multiply
    93,713.80x = 140,619.30 × 41,128.60
  4. Step 4: Simplify right side
    93,713.80x = 5,783,474,941.98
  5. Step 5: Solve for x
    x = 5,783,474,941.98/93,713.80
  6. Step 6: Final answer
    x = 61,714.23

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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.