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Finding the Fourth Proportional to 123,492.88, 185,219.92 and 39,241.95

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Solution

The fourth proportional to 123,492.88, 185,219.92 and 39,241.95 is: 58,856.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,492.88 : 185,219.92 = 39,241.95 : x
  2. Step 2: Convert to fraction form
    123,492.88/185,219.92 = 39,241.95/x
  3. Step 3: Cross multiply
    123,492.88x = 185,219.92 × 39,241.95
  4. Step 4: Simplify right side
    123,492.88x = 7,268,390,839.64
  5. Step 5: Solve for x
    x = 7,268,390,839.64/123,492.88
  6. Step 6: Final answer
    x = 58,856.76

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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.