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Finding the Fourth Proportional to 68,328.40, 102,492.60 and 44,708.80

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Solution

The fourth proportional to 68,328.40, 102,492.60 and 44,708.80 is: 67,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,328.40 : 102,492.60 = 44,708.80 : x
  2. Step 2: Convert to fraction form
    68,328.40/102,492.60 = 44,708.80/x
  3. Step 3: Cross multiply
    68,328.40x = 102,492.60 × 44,708.80
  4. Step 4: Simplify right side
    68,328.40x = 4,582,321,154.88
  5. Step 5: Solve for x
    x = 4,582,321,154.88/68,328.40
  6. Step 6: Final answer
    x = 67,063.20

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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.