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Finding the Fourth Proportional to 143,066.63, 214,638.21 and 49,572.38

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Solution

The fourth proportional to 143,066.63, 214,638.21 and 49,572.38 is: 74,371.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,066.63 : 214,638.21 = 49,572.38 : x
  2. Step 2: Convert to fraction form
    143,066.63/214,638.21 = 49,572.38/x
  3. Step 3: Cross multiply
    143,066.63x = 214,638.21 × 49,572.38
  4. Step 4: Simplify right side
    143,066.63x = 10,640,125,835.45
  5. Step 5: Solve for x
    x = 10,640,125,835.45/143,066.63
  6. Step 6: Final answer
    x = 74,371.82

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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.