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Finding the Fourth Proportional to 81,495.59, 122,278.50 and 44,082

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Solution

The fourth proportional to 81,495.59, 122,278.50 and 44,082 is: 66,142.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,495.59 : 122,278.50 = 44,082 : x
  2. Step 2: Convert to fraction form
    81,495.59/122,278.50 = 44,082/x
  3. Step 3: Cross multiply
    81,495.59x = 122,278.50 × 44,082
  4. Step 4: Simplify right side
    81,495.59x = 5,390,280,837
  5. Step 5: Solve for x
    x = 5,390,280,837/81,495.59
  6. Step 6: Final answer
    x = 66,142.00

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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.