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Finding the Fourth Proportional to 95,913.40, 143,675.70 and 54,311.80

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Solution

The fourth proportional to 95,913.40, 143,675.70 and 54,311.80 is: 81,357.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,913.40 : 143,675.70 = 54,311.80 : x
  2. Step 2: Convert to fraction form
    95,913.40/143,675.70 = 54,311.80/x
  3. Step 3: Cross multiply
    95,913.40x = 143,675.70 × 54,311.80
  4. Step 4: Simplify right side
    95,913.40x = 7,803,285,883.26
  5. Step 5: Solve for x
    x = 7,803,285,883.26/95,913.40
  6. Step 6: Final answer
    x = 81,357.62

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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.