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Finding the Fourth Proportional to 68,659.60, 102,989.40 and 24,336.40

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Solution

The fourth proportional to 68,659.60, 102,989.40 and 24,336.40 is: 36,504.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,659.60 : 102,989.40 = 24,336.40 : x
  2. Step 2: Convert to fraction form
    68,659.60/102,989.40 = 24,336.40/x
  3. Step 3: Cross multiply
    68,659.60x = 102,989.40 × 24,336.40
  4. Step 4: Simplify right side
    68,659.60x = 2,506,391,234.16
  5. Step 5: Solve for x
    x = 2,506,391,234.16/68,659.60
  6. Step 6: Final answer
    x = 36,504.60

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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.