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Finding the Fourth Proportional to 132,369.70, 182,671.60 and 71,940.34

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Solution

The fourth proportional to 132,369.70, 182,671.60 and 71,940.34 is: 99,278.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,369.70 : 182,671.60 = 71,940.34 : x
  2. Step 2: Convert to fraction form
    132,369.70/182,671.60 = 71,940.34/x
  3. Step 3: Cross multiply
    132,369.70x = 182,671.60 × 71,940.34
  4. Step 4: Simplify right side
    132,369.70x = 13,141,457,012.34
  5. Step 5: Solve for x
    x = 13,141,457,012.34/132,369.70
  6. Step 6: Final answer
    x = 99,278.44

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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.