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Finding the Fourth Proportional to 143,671.87, 215,541.50 and 43,832.03

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Solution

The fourth proportional to 143,671.87, 215,541.50 and 43,832.03 is: 65,758.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,671.87 : 215,541.50 = 43,832.03 : x
  2. Step 2: Convert to fraction form
    143,671.87/215,541.50 = 43,832.03/x
  3. Step 3: Cross multiply
    143,671.87x = 215,541.50 × 43,832.03
  4. Step 4: Simplify right side
    143,671.87x = 9,447,621,494.25
  5. Step 5: Solve for x
    x = 9,447,621,494.25/143,671.87
  6. Step 6: Final answer
    x = 65,758.32

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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.