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Finding the Fourth Proportional to 228,976.48, 343,506.96 and 71,194.72

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Solution

The fourth proportional to 228,976.48, 343,506.96 and 71,194.72 is: 106,805.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,976.48 : 343,506.96 = 71,194.72 : x
  2. Step 2: Convert to fraction form
    228,976.48/343,506.96 = 71,194.72/x
  3. Step 3: Cross multiply
    228,976.48x = 343,506.96 × 71,194.72
  4. Step 4: Simplify right side
    228,976.48x = 24,455,881,835.25
  5. Step 5: Solve for x
    x = 24,455,881,835.25/228,976.48
  6. Step 6: Final answer
    x = 106,805.21

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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.