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Finding the Fourth Proportional to 228,463.67, 315,279.83 and 127,861.67

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Solution

The fourth proportional to 228,463.67, 315,279.83 and 127,861.67 is: 176,449.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,463.67 : 315,279.83 = 127,861.67 : x
  2. Step 2: Convert to fraction form
    228,463.67/315,279.83 = 127,861.67/x
  3. Step 3: Cross multiply
    228,463.67x = 315,279.83 × 127,861.67
  4. Step 4: Simplify right side
    228,463.67x = 40,312,204,941.81
  5. Step 5: Solve for x
    x = 40,312,204,941.81/228,463.67
  6. Step 6: Final answer
    x = 176,449.08

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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.