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Finding the Fourth Proportional to 93,982.42, 129,694.53 and 53,695.87

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Solution

The fourth proportional to 93,982.42, 129,694.53 and 53,695.87 is: 74,099.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,982.42 : 129,694.53 = 53,695.87 : x
  2. Step 2: Convert to fraction form
    93,982.42/129,694.53 = 53,695.87/x
  3. Step 3: Cross multiply
    93,982.42x = 129,694.53 × 53,695.87
  4. Step 4: Simplify right side
    93,982.42x = 6,964,060,622.59
  5. Step 5: Solve for x
    x = 6,964,060,622.59/93,982.42
  6. Step 6: Final answer
    x = 74,099.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.