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Finding the Fourth Proportional to 295,865.80, 443,856.30 and 127,385.80

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Solution

The fourth proportional to 295,865.80, 443,856.30 and 127,385.80 is: 191,103.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,865.80 : 443,856.30 = 127,385.80 : x
  2. Step 2: Convert to fraction form
    295,865.80/443,856.30 = 127,385.80/x
  3. Step 3: Cross multiply
    295,865.80x = 443,856.30 × 127,385.80
  4. Step 4: Simplify right side
    295,865.80x = 56,540,989,860.54
  5. Step 5: Solve for x
    x = 56,540,989,860.54/295,865.80
  6. Step 6: Final answer
    x = 191,103.50

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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.