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Finding the Fourth Proportional to 143,610.40, 215,425.20 and 48,839.20

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Solution

The fourth proportional to 143,610.40, 215,425.20 and 48,839.20 is: 73,262.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,610.40 : 215,425.20 = 48,839.20 : x
  2. Step 2: Convert to fraction form
    143,610.40/215,425.20 = 48,839.20/x
  3. Step 3: Cross multiply
    143,610.40x = 215,425.20 × 48,839.20
  4. Step 4: Simplify right side
    143,610.40x = 10,521,194,427.84
  5. Step 5: Solve for x
    x = 10,521,194,427.84/143,610.40
  6. Step 6: Final answer
    x = 73,262.06

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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.