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Finding the Fourth Proportional to 139,927.64, 209,953.41 and 73,351.94

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Solution

The fourth proportional to 139,927.64, 209,953.41 and 73,351.94 is: 110,060.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,927.64 : 209,953.41 = 73,351.94 : x
  2. Step 2: Convert to fraction form
    139,927.64/209,953.41 = 73,351.94/x
  3. Step 3: Cross multiply
    139,927.64x = 209,953.41 × 73,351.94
  4. Step 4: Simplify right side
    139,927.64x = 15,400,489,933.12
  5. Step 5: Solve for x
    x = 15,400,489,933.12/139,927.64
  6. Step 6: Final answer
    x = 110,060.39

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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.