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Finding the Fourth Proportional to 325,478.48, 488,241.11 and 112,243.32

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Solution

The fourth proportional to 325,478.48, 488,241.11 and 112,243.32 is: 168,373.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,478.48 : 488,241.11 = 112,243.32 : x
  2. Step 2: Convert to fraction form
    325,478.48/488,241.11 = 112,243.32/x
  3. Step 3: Cross multiply
    325,478.48x = 488,241.11 × 112,243.32
  4. Step 4: Simplify right side
    325,478.48x = 54,801,802,585.67
  5. Step 5: Solve for x
    x = 54,801,802,585.67/325,478.48
  6. Step 6: Final answer
    x = 168,373.05

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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.