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Finding the Fourth Proportional to 93,654.92, 140,334.42 and 76,038.68

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Solution

The fourth proportional to 93,654.92, 140,334.42 and 76,038.68 is: 113,937.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,654.92 : 140,334.42 = 76,038.68 : x
  2. Step 2: Convert to fraction form
    93,654.92/140,334.42 = 76,038.68/x
  3. Step 3: Cross multiply
    93,654.92x = 140,334.42 × 76,038.68
  4. Step 4: Simplify right side
    93,654.92x = 10,670,844,055.37
  5. Step 5: Solve for x
    x = 10,670,844,055.37/93,654.92
  6. Step 6: Final answer
    x = 113,937.89

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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.