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Finding the Fourth Proportional to 93,696.62, 140,591.09 and 43,780.16

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Solution

The fourth proportional to 93,696.62, 140,591.09 and 43,780.16 is: 65,691.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,696.62 : 140,591.09 = 43,780.16 : x
  2. Step 2: Convert to fraction form
    93,696.62/140,591.09 = 43,780.16/x
  3. Step 3: Cross multiply
    93,696.62x = 140,591.09 × 43,780.16
  4. Step 4: Simplify right side
    93,696.62x = 6,155,100,875.70
  5. Step 5: Solve for x
    x = 6,155,100,875.70/93,696.62
  6. Step 6: Final answer
    x = 65,691.82

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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.