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Finding the Fourth Proportional to 101,374.26, 139,884.26 and 56,046.12

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Solution

The fourth proportional to 101,374.26, 139,884.26 and 56,046.12 is: 77,336.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,374.26 : 139,884.26 = 56,046.12 : x
  2. Step 2: Convert to fraction form
    101,374.26/139,884.26 = 56,046.12/x
  3. Step 3: Cross multiply
    101,374.26x = 139,884.26 × 56,046.12
  4. Step 4: Simplify right side
    101,374.26x = 7,839,970,022.07
  5. Step 5: Solve for x
    x = 7,839,970,022.07/101,374.26
  6. Step 6: Final answer
    x = 77,336.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.