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Finding the Fourth Proportional to 101,348.82, 139,878.77 and 58,932

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Solution

The fourth proportional to 101,348.82, 139,878.77 and 58,932 is: 81,336.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,348.82 : 139,878.77 = 58,932 : x
  2. Step 2: Convert to fraction form
    101,348.82/139,878.77 = 58,932/x
  3. Step 3: Cross multiply
    101,348.82x = 139,878.77 × 58,932
  4. Step 4: Simplify right side
    101,348.82x = 8,243,335,378.98
  5. Step 5: Solve for x
    x = 8,243,335,378.98/101,348.82
  6. Step 6: Final answer
    x = 81,336.27

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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.