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Finding the Fourth Proportional to 129,968.60, 194,492.10 and 88,496.60

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Solution

The fourth proportional to 129,968.60, 194,492.10 and 88,496.60 is: 132,431.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,968.60 : 194,492.10 = 88,496.60 : x
  2. Step 2: Convert to fraction form
    129,968.60/194,492.10 = 88,496.60/x
  3. Step 3: Cross multiply
    129,968.60x = 194,492.10 × 88,496.60
  4. Step 4: Simplify right side
    129,968.60x = 17,211,889,576.86
  5. Step 5: Solve for x
    x = 17,211,889,576.86/129,968.60
  6. Step 6: Final answer
    x = 132,431.14

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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.