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Finding the Fourth Proportional to 325,328.60, 488,072.90 and 112,099.80

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Solution

The fourth proportional to 325,328.60, 488,072.90 and 112,099.80 is: 168,177.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,328.60 : 488,072.90 = 112,099.80 : x
  2. Step 2: Convert to fraction form
    325,328.60/488,072.90 = 112,099.80/x
  3. Step 3: Cross multiply
    325,328.60x = 488,072.90 × 112,099.80
  4. Step 4: Simplify right side
    325,328.60x = 54,712,874,475.42
  5. Step 5: Solve for x
    x = 54,712,874,475.42/325,328.60
  6. Step 6: Final answer
    x = 168,177.27

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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.