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Finding the Fourth Proportional to 329,172.58, 493,758.87 and 92,539.18

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Solution

The fourth proportional to 329,172.58, 493,758.87 and 92,539.18 is: 138,808.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,172.58 : 493,758.87 = 92,539.18 : x
  2. Step 2: Convert to fraction form
    329,172.58/493,758.87 = 92,539.18/x
  3. Step 3: Cross multiply
    329,172.58x = 493,758.87 × 92,539.18
  4. Step 4: Simplify right side
    329,172.58x = 45,692,040,947.53
  5. Step 5: Solve for x
    x = 45,692,040,947.53/329,172.58
  6. Step 6: Final answer
    x = 138,808.77

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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.