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Finding the Fourth Proportional to 295,310.44, 442,998.78 and 108,321.40

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Solution

The fourth proportional to 295,310.44, 442,998.78 and 108,321.40 is: 162,494.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,310.44 : 442,998.78 = 108,321.40 : x
  2. Step 2: Convert to fraction form
    295,310.44/442,998.78 = 108,321.40/x
  3. Step 3: Cross multiply
    295,310.44x = 442,998.78 × 108,321.40
  4. Step 4: Simplify right side
    295,310.44x = 47,986,248,047.89
  5. Step 5: Solve for x
    x = 47,986,248,047.89/295,310.44
  6. Step 6: Final answer
    x = 162,494.25

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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.