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Finding the Fourth Proportional to 228,362.28, 315,245.70 and 132,834.12

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Solution

The fourth proportional to 228,362.28, 315,245.70 and 132,834.12 is: 183,372.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,362.28 : 315,245.70 = 132,834.12 : x
  2. Step 2: Convert to fraction form
    228,362.28/315,245.70 = 132,834.12/x
  3. Step 3: Cross multiply
    228,362.28x = 315,245.70 × 132,834.12
  4. Step 4: Simplify right side
    228,362.28x = 41,875,385,143.28
  5. Step 5: Solve for x
    x = 41,875,385,143.28/228,362.28
  6. Step 6: Final answer
    x = 183,372.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.