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Finding the Fourth Proportional to 95,359.80, 143,385.30 and 80,153.40

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Solution

The fourth proportional to 95,359.80, 143,385.30 and 80,153.40 is: 120,520.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,359.80 : 143,385.30 = 80,153.40 : x
  2. Step 2: Convert to fraction form
    95,359.80/143,385.30 = 80,153.40/x
  3. Step 3: Cross multiply
    95,359.80x = 143,385.30 × 80,153.40
  4. Step 4: Simplify right side
    95,359.80x = 11,492,819,305.02
  5. Step 5: Solve for x
    x = 11,492,819,305.02/95,359.80
  6. Step 6: Final answer
    x = 120,520.59

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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.