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Finding the Fourth Proportional to 323,987.09, 485,978.56 and 110,652.08

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Solution

The fourth proportional to 323,987.09, 485,978.56 and 110,652.08 is: 165,977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,987.09 : 485,978.56 = 110,652.08 : x
  2. Step 2: Convert to fraction form
    323,987.09/485,978.56 = 110,652.08/x
  3. Step 3: Cross multiply
    323,987.09x = 485,978.56 × 110,652.08
  4. Step 4: Simplify right side
    323,987.09x = 53,774,535,792.88
  5. Step 5: Solve for x
    x = 53,774,535,792.88/323,987.09
  6. Step 6: Final answer
    x = 165,977.41

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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.