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Finding the Fourth Proportional to 325,811.02, 488,650.92 and 89,177.62

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Solution

The fourth proportional to 325,811.02, 488,650.92 and 89,177.62 is: 133,748.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,811.02 : 488,650.92 = 89,177.62 : x
  2. Step 2: Convert to fraction form
    325,811.02/488,650.92 = 89,177.62/x
  3. Step 3: Cross multiply
    325,811.02x = 488,650.92 × 89,177.62
  4. Step 4: Simplify right side
    325,811.02x = 43,576,726,056.41
  5. Step 5: Solve for x
    x = 43,576,726,056.41/325,811.02
  6. Step 6: Final answer
    x = 133,748.47

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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.