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Finding the Fourth Proportional to 143,855.87, 215,784.48 and 44,015.90

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Solution

The fourth proportional to 143,855.87, 215,784.48 and 44,015.90 is: 66,024.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,855.87 : 215,784.48 = 44,015.90 : x
  2. Step 2: Convert to fraction form
    143,855.87/215,784.48 = 44,015.90/x
  3. Step 3: Cross multiply
    143,855.87x = 215,784.48 × 44,015.90
  4. Step 4: Simplify right side
    143,855.87x = 9,497,947,823.50
  5. Step 5: Solve for x
    x = 9,497,947,823.50/143,855.87
  6. Step 6: Final answer
    x = 66,024.06

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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.