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Finding the Fourth Proportional to 132,959.41, 183,484.51 and 72,531.38

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Solution

The fourth proportional to 132,959.41, 183,484.51 and 72,531.38 is: 100,093.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,959.41 : 183,484.51 = 72,531.38 : x
  2. Step 2: Convert to fraction form
    132,959.41/183,484.51 = 72,531.38/x
  3. Step 3: Cross multiply
    132,959.41x = 183,484.51 × 72,531.38
  4. Step 4: Simplify right side
    132,959.41x = 13,308,384,996.31
  5. Step 5: Solve for x
    x = 13,308,384,996.31/132,959.41
  6. Step 6: Final answer
    x = 100,093.59

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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.