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Finding the Fourth Proportional to 93,932, 129,639.42 and 58,133.54

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Solution

The fourth proportional to 93,932, 129,639.42 and 58,133.54 is: 80,232.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,932 : 129,639.42 = 58,133.54 : x
  2. Step 2: Convert to fraction form
    93,932/129,639.42 = 58,133.54/x
  3. Step 3: Cross multiply
    93,932x = 129,639.42 × 58,133.54
  4. Step 4: Simplify right side
    93,932x = 7,536,398,408.15
  5. Step 5: Solve for x
    x = 7,536,398,408.15/93,932
  6. Step 6: Final answer
    x = 80,232.49

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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.