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Finding the Fourth Proportional to 132,575.25, 182,953.88 and 72,959.25

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Solution

The fourth proportional to 132,575.25, 182,953.88 and 72,959.25 is: 100,683.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,575.25 : 182,953.88 = 72,959.25 : x
  2. Step 2: Convert to fraction form
    132,575.25/182,953.88 = 72,959.25/x
  3. Step 3: Cross multiply
    132,575.25x = 182,953.88 × 72,959.25
  4. Step 4: Simplify right side
    132,575.25x = 13,348,177,504.59
  5. Step 5: Solve for x
    x = 13,348,177,504.59/132,575.25
  6. Step 6: Final answer
    x = 100,683.78

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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.