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Finding the Fourth Proportional to 132,034, 182,206.92 and 72,418

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Solution

The fourth proportional to 132,034, 182,206.92 and 72,418 is: 99,936.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,034 : 182,206.92 = 72,418 : x
  2. Step 2: Convert to fraction form
    132,034/182,206.92 = 72,418/x
  3. Step 3: Cross multiply
    132,034x = 182,206.92 × 72,418
  4. Step 4: Simplify right side
    132,034x = 13,195,060,732.56
  5. Step 5: Solve for x
    x = 13,195,060,732.56/132,034
  6. Step 6: Final answer
    x = 99,936.84

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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.