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Finding the Fourth Proportional to 132,725.58, 198,968.04 and 66,186.11

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Solution

The fourth proportional to 132,725.58, 198,968.04 and 66,186.11 is: 99,219.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,725.58 : 198,968.04 = 66,186.11 : x
  2. Step 2: Convert to fraction form
    132,725.58/198,968.04 = 66,186.11/x
  3. Step 3: Cross multiply
    132,725.58x = 198,968.04 × 66,186.11
  4. Step 4: Simplify right side
    132,725.58x = 13,168,919,587.08
  5. Step 5: Solve for x
    x = 13,168,919,587.08/132,725.58
  6. Step 6: Final answer
    x = 99,219.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.