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Finding the Fourth Proportional to 295,174.60, 442,761.90 and 84,800.20

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Solution

The fourth proportional to 295,174.60, 442,761.90 and 84,800.20 is: 127,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,174.60 : 442,761.90 = 84,800.20 : x
  2. Step 2: Convert to fraction form
    295,174.60/442,761.90 = 84,800.20/x
  3. Step 3: Cross multiply
    295,174.60x = 442,761.90 × 84,800.20
  4. Step 4: Simplify right side
    295,174.60x = 37,546,297,672.38
  5. Step 5: Solve for x
    x = 37,546,297,672.38/295,174.60
  6. Step 6: Final answer
    x = 127,200.30

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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.