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Finding the Fourth Proportional to 132,732, 183,170.16 and 73,116

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Solution

The fourth proportional to 132,732, 183,170.16 and 73,116 is: 100,900.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,732 : 183,170.16 = 73,116 : x
  2. Step 2: Convert to fraction form
    132,732/183,170.16 = 73,116/x
  3. Step 3: Cross multiply
    132,732x = 183,170.16 × 73,116
  4. Step 4: Simplify right side
    132,732x = 13,392,669,418.56
  5. Step 5: Solve for x
    x = 13,392,669,418.56/132,732
  6. Step 6: Final answer
    x = 100,900.08

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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.