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Finding the Fourth Proportional to 112,017.46, 154,584.03 and 61,716.46

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Solution

The fourth proportional to 112,017.46, 154,584.03 and 61,716.46 is: 85,168.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,017.46 : 154,584.03 = 61,716.46 : x
  2. Step 2: Convert to fraction form
    112,017.46/154,584.03 = 61,716.46/x
  3. Step 3: Cross multiply
    112,017.46x = 154,584.03 × 61,716.46
  4. Step 4: Simplify right side
    112,017.46x = 9,540,378,795.55
  5. Step 5: Solve for x
    x = 9,540,378,795.55/112,017.46
  6. Step 6: Final answer
    x = 85,168.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.