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Finding the Fourth Proportional to 142,524.28, 213,791.88 and 63,639.19

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Solution

The fourth proportional to 142,524.28, 213,791.88 and 63,639.19 is: 95,461.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,524.28 : 213,791.88 = 63,639.19 : x
  2. Step 2: Convert to fraction form
    142,524.28/213,791.88 = 63,639.19/x
  3. Step 3: Cross multiply
    142,524.28x = 213,791.88 × 63,639.19
  4. Step 4: Simplify right side
    142,524.28x = 13,605,542,071.78
  5. Step 5: Solve for x
    x = 13,605,542,071.78/142,524.28
  6. Step 6: Final answer
    x = 95,461.22

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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.