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Finding the Fourth Proportional to 93,199.34, 139,660.76 and 68,454.38

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Solution

The fourth proportional to 93,199.34, 139,660.76 and 68,454.38 is: 102,580.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,199.34 : 139,660.76 = 68,454.38 : x
  2. Step 2: Convert to fraction form
    93,199.34/139,660.76 = 68,454.38/x
  3. Step 3: Cross multiply
    93,199.34x = 139,660.76 × 68,454.38
  4. Step 4: Simplify right side
    93,199.34x = 9,560,390,736.13
  5. Step 5: Solve for x
    x = 9,560,390,736.13/93,199.34
  6. Step 6: Final answer
    x = 102,580.03

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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.