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Finding the Fourth Proportional to 228,925.96, 315,811.23 and 148,379.56

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Solution

The fourth proportional to 228,925.96, 315,811.23 and 148,379.56 is: 204,694.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,925.96 : 315,811.23 = 148,379.56 : x
  2. Step 2: Convert to fraction form
    228,925.96/315,811.23 = 148,379.56/x
  3. Step 3: Cross multiply
    228,925.96x = 315,811.23 × 148,379.56
  4. Step 4: Simplify right side
    228,925.96x = 46,859,931,350.46
  5. Step 5: Solve for x
    x = 46,859,931,350.46/228,925.96
  6. Step 6: Final answer
    x = 204,694.70

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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.