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Finding the Fourth Proportional to 314,628.96, 471,982.32 and 115,043.34

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Solution

The fourth proportional to 314,628.96, 471,982.32 and 115,043.34 is: 172,579.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,628.96 : 471,982.32 = 115,043.34 : x
  2. Step 2: Convert to fraction form
    314,628.96/471,982.32 = 115,043.34/x
  3. Step 3: Cross multiply
    314,628.96x = 471,982.32 × 115,043.34
  4. Step 4: Simplify right side
    314,628.96x = 54,298,422,513.75
  5. Step 5: Solve for x
    x = 54,298,422,513.75/314,628.96
  6. Step 6: Final answer
    x = 172,579.23

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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.