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Finding the Fourth Proportional to 147,471.57, 203,487.17 and 82,940.63

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Solution

The fourth proportional to 147,471.57, 203,487.17 and 82,940.63 is: 114,444.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,471.57 : 203,487.17 = 82,940.63 : x
  2. Step 2: Convert to fraction form
    147,471.57/203,487.17 = 82,940.63/x
  3. Step 3: Cross multiply
    147,471.57x = 203,487.17 × 82,940.63
  4. Step 4: Simplify right side
    147,471.57x = 16,877,352,644.58
  5. Step 5: Solve for x
    x = 16,877,352,644.58/147,471.57
  6. Step 6: Final answer
    x = 114,444.79

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1.5x scale

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.