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Finding the Fourth Proportional to 56,202.71, 84,231.39 and 42,051.71

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Solution

The fourth proportional to 56,202.71, 84,231.39 and 42,051.71 is: 63,023.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,202.71 : 84,231.39 = 42,051.71 : x
  2. Step 2: Convert to fraction form
    56,202.71/84,231.39 = 42,051.71/x
  3. Step 3: Cross multiply
    56,202.71x = 84,231.39 × 42,051.71
  4. Step 4: Simplify right side
    56,202.71x = 3,542,073,985.18
  5. Step 5: Solve for x
    x = 3,542,073,985.18/56,202.71
  6. Step 6: Final answer
    x = 63,023.19

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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.