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Finding the Fourth Proportional to 295,310.40, 442,965.60 and 108,297.60

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Solution

The fourth proportional to 295,310.40, 442,965.60 and 108,297.60 is: 162,446.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,310.40 : 442,965.60 = 108,297.60 : x
  2. Step 2: Convert to fraction form
    295,310.40/442,965.60 = 108,297.60/x
  3. Step 3: Cross multiply
    295,310.40x = 442,965.60 × 108,297.60
  4. Step 4: Simplify right side
    295,310.40x = 47,972,111,362.56
  5. Step 5: Solve for x
    x = 47,972,111,362.56/295,310.40
  6. Step 6: Final answer
    x = 162,446.40

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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.