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Finding the Fourth Proportional to 325,719.62, 488,459.34 and 112,433.25

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Solution

The fourth proportional to 325,719.62, 488,459.34 and 112,433.25 is: 168,608.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,719.62 : 488,459.34 = 112,433.25 : x
  2. Step 2: Convert to fraction form
    325,719.62/488,459.34 = 112,433.25/x
  3. Step 3: Cross multiply
    325,719.62x = 488,459.34 × 112,433.25
  4. Step 4: Simplify right side
    325,719.62x = 54,919,071,089.06
  5. Step 5: Solve for x
    x = 54,919,071,089.06/325,719.62
  6. Step 6: Final answer
    x = 168,608.42

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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.