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Finding the Fourth Proportional to 93,884.87, 129,485.72 and 82,530.23

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Solution

The fourth proportional to 93,884.87, 129,485.72 and 82,530.23 is: 113,825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,884.87 : 129,485.72 = 82,530.23 : x
  2. Step 2: Convert to fraction form
    93,884.87/129,485.72 = 82,530.23/x
  3. Step 3: Cross multiply
    93,884.87x = 129,485.72 × 82,530.23
  4. Step 4: Simplify right side
    93,884.87x = 10,686,485,812.21
  5. Step 5: Solve for x
    x = 10,686,485,812.21/93,884.87
  6. Step 6: Final answer
    x = 113,825.43

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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.