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Finding the Fourth Proportional to 113,381.78, 170,111.09 and 50,193.17

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Solution

The fourth proportional to 113,381.78, 170,111.09 and 50,193.17 is: 75,306.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,381.78 : 170,111.09 = 50,193.17 : x
  2. Step 2: Convert to fraction form
    113,381.78/170,111.09 = 50,193.17/x
  3. Step 3: Cross multiply
    113,381.78x = 170,111.09 × 50,193.17
  4. Step 4: Simplify right side
    113,381.78x = 8,538,414,489.76
  5. Step 5: Solve for x
    x = 8,538,414,489.76/113,381.78
  6. Step 6: Final answer
    x = 75,306.76

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1.5x scale

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.