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Finding the Fourth Proportional to 132,519, 182,876.22 and 72,903

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Solution

The fourth proportional to 132,519, 182,876.22 and 72,903 is: 100,606.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,519 : 182,876.22 = 72,903 : x
  2. Step 2: Convert to fraction form
    132,519/182,876.22 = 72,903/x
  3. Step 3: Cross multiply
    132,519x = 182,876.22 × 72,903
  4. Step 4: Simplify right side
    132,519x = 13,332,225,066.66
  5. Step 5: Solve for x
    x = 13,332,225,066.66/132,519
  6. Step 6: Final answer
    x = 100,606.14

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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.