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Finding the Fourth Proportional to 113,150.70, 169,835.40 and 68,863.95

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Solution

The fourth proportional to 113,150.70, 169,835.40 and 68,863.95 is: 103,362.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,150.70 : 169,835.40 = 68,863.95 : x
  2. Step 2: Convert to fraction form
    113,150.70/169,835.40 = 68,863.95/x
  3. Step 3: Cross multiply
    113,150.70x = 169,835.40 × 68,863.95
  4. Step 4: Simplify right side
    113,150.70x = 11,695,536,493.83
  5. Step 5: Solve for x
    x = 11,695,536,493.83/113,150.70
  6. Step 6: Final answer
    x = 103,362.48

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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.