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Finding the Fourth Proportional to 295,205.30, 442,865.55 and 126,725.30

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Solution

The fourth proportional to 295,205.30, 442,865.55 and 126,725.30 is: 190,112.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,205.30 : 442,865.55 = 126,725.30 : x
  2. Step 2: Convert to fraction form
    295,205.30/442,865.55 = 126,725.30/x
  3. Step 3: Cross multiply
    295,205.30x = 442,865.55 × 126,725.30
  4. Step 4: Simplify right side
    295,205.30x = 56,122,269,683.42
  5. Step 5: Solve for x
    x = 56,122,269,683.42/295,205.30
  6. Step 6: Final answer
    x = 190,112.68

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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.