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Finding the Fourth Proportional to 68,423.62, 102,492.36 and 55,024.12

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Solution

The fourth proportional to 68,423.62, 102,492.36 and 55,024.12 is: 82,421.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,423.62 : 102,492.36 = 55,024.12 : x
  2. Step 2: Convert to fraction form
    68,423.62/102,492.36 = 55,024.12/x
  3. Step 3: Cross multiply
    68,423.62x = 102,492.36 × 55,024.12
  4. Step 4: Simplify right side
    68,423.62x = 5,639,551,915.72
  5. Step 5: Solve for x
    x = 5,639,551,915.72/68,423.62
  6. Step 6: Final answer
    x = 82,421.13

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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.