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Finding the Fourth Proportional to 143,062.13, 214,631.46 and 49,567.88

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Solution

The fourth proportional to 143,062.13, 214,631.46 and 49,567.88 is: 74,365.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,062.13 : 214,631.46 = 49,567.88 : x
  2. Step 2: Convert to fraction form
    143,062.13/214,631.46 = 49,567.88/x
  3. Step 3: Cross multiply
    143,062.13x = 214,631.46 × 49,567.88
  4. Step 4: Simplify right side
    143,062.13x = 10,638,825,380.35
  5. Step 5: Solve for x
    x = 10,638,825,380.35/143,062.13
  6. Step 6: Final answer
    x = 74,365.07

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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.