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Finding the Fourth Proportional to 112,017.71, 154,584.37 and 61,716.71

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Solution

The fourth proportional to 112,017.71, 154,584.37 and 61,716.71 is: 85,169.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,017.71 : 154,584.37 = 61,716.71 : x
  2. Step 2: Convert to fraction form
    112,017.71/154,584.37 = 61,716.71/x
  3. Step 3: Cross multiply
    112,017.71x = 154,584.37 × 61,716.71
  4. Step 4: Simplify right side
    112,017.71x = 9,540,438,965.99
  5. Step 5: Solve for x
    x = 9,540,438,965.99/112,017.71
  6. Step 6: Final answer
    x = 85,169.02

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1.5x scale

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.