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Finding the Fourth Proportional to 228,321.60, 315,082.08 and 132,884.16

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Solution

The fourth proportional to 228,321.60, 315,082.08 and 132,884.16 is: 183,379.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,321.60 : 315,082.08 = 132,884.16 : x
  2. Step 2: Convert to fraction form
    228,321.60/315,082.08 = 132,884.16/x
  3. Step 3: Cross multiply
    228,321.60x = 315,082.08 × 132,884.16
  4. Step 4: Simplify right side
    228,321.60x = 41,869,417,531.85
  5. Step 5: Solve for x
    x = 41,869,417,531.85/228,321.60
  6. Step 6: Final answer
    x = 183,379.14

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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.