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Finding the Fourth Proportional to 325,840.41, 488,124.32 and 154,818.74

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Solution

The fourth proportional to 325,840.41, 488,124.32 and 154,818.74 is: 231,925.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,840.41 : 488,124.32 = 154,818.74 : x
  2. Step 2: Convert to fraction form
    325,840.41/488,124.32 = 154,818.74/x
  3. Step 3: Cross multiply
    325,840.41x = 488,124.32 × 154,818.74
  4. Step 4: Simplify right side
    325,840.41x = 75,570,790,480.47
  5. Step 5: Solve for x
    x = 75,570,790,480.47/325,840.41
  6. Step 6: Final answer
    x = 231,925.78

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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.