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Finding the Fourth Proportional to 143,697.35, 215,546.03 and 43,858.08

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Solution

The fourth proportional to 143,697.35, 215,546.03 and 43,858.08 is: 65,787.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,697.35 : 215,546.03 = 43,858.08 : x
  2. Step 2: Convert to fraction form
    143,697.35/215,546.03 = 43,858.08/x
  3. Step 3: Cross multiply
    143,697.35x = 215,546.03 × 43,858.08
  4. Step 4: Simplify right side
    143,697.35x = 9,453,434,808.13
  5. Step 5: Solve for x
    x = 9,453,434,808.13/143,697.35
  6. Step 6: Final answer
    x = 65,787.12

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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.