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Finding the Fourth Proportional to 93,469.95, 140,159.57 and 43,538.31

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Solution

The fourth proportional to 93,469.95, 140,159.57 and 43,538.31 is: 65,286.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,469.95 : 140,159.57 = 43,538.31 : x
  2. Step 2: Convert to fraction form
    93,469.95/140,159.57 = 43,538.31/x
  3. Step 3: Cross multiply
    93,469.95x = 140,159.57 × 43,538.31
  4. Step 4: Simplify right side
    93,469.95x = 6,102,310,590.44
  5. Step 5: Solve for x
    x = 6,102,310,590.44/93,469.95
  6. Step 6: Final answer
    x = 65,286.34

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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.