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Finding the Fourth Proportional to 305,881.10, 458,821.65 and 95,540.30

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Solution

The fourth proportional to 305,881.10, 458,821.65 and 95,540.30 is: 143,310.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,881.10 : 458,821.65 = 95,540.30 : x
  2. Step 2: Convert to fraction form
    305,881.10/458,821.65 = 95,540.30/x
  3. Step 3: Cross multiply
    305,881.10x = 458,821.65 × 95,540.30
  4. Step 4: Simplify right side
    305,881.10x = 43,835,958,087.50
  5. Step 5: Solve for x
    x = 43,835,958,087.50/305,881.10
  6. Step 6: Final answer
    x = 143,310.45

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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.