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Finding the Fourth Proportional to 101,073.32, 139,481.84 and 55,752.52

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Solution

The fourth proportional to 101,073.32, 139,481.84 and 55,752.52 is: 76,938.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,073.32 : 139,481.84 = 55,752.52 : x
  2. Step 2: Convert to fraction form
    101,073.32/139,481.84 = 55,752.52/x
  3. Step 3: Cross multiply
    101,073.32x = 139,481.84 × 55,752.52
  4. Step 4: Simplify right side
    101,073.32x = 7,776,464,074.24
  5. Step 5: Solve for x
    x = 7,776,464,074.24/101,073.32
  6. Step 6: Final answer
    x = 76,938.84

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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.