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Finding the Fourth Proportional to 228,811.70, 343,217.55 and 71,056.10

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Solution

The fourth proportional to 228,811.70, 343,217.55 and 71,056.10 is: 106,584.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,811.70 : 343,217.55 = 71,056.10 : x
  2. Step 2: Convert to fraction form
    228,811.70/343,217.55 = 71,056.10/x
  3. Step 3: Cross multiply
    228,811.70x = 343,217.55 × 71,056.10
  4. Step 4: Simplify right side
    228,811.70x = 24,387,700,554.56
  5. Step 5: Solve for x
    x = 24,387,700,554.56/228,811.70
  6. Step 6: Final answer
    x = 106,584.15

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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.