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Finding the Fourth Proportional to 106,611.39, 147,119.79 and 58,863.71

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Solution

The fourth proportional to 106,611.39, 147,119.79 and 58,863.71 is: 81,229.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,611.39 : 147,119.79 = 58,863.71 : x
  2. Step 2: Convert to fraction form
    106,611.39/147,119.79 = 58,863.71/x
  3. Step 3: Cross multiply
    106,611.39x = 147,119.79 × 58,863.71
  4. Step 4: Simplify right side
    106,611.39x = 8,660,017,242.36
  5. Step 5: Solve for x
    x = 8,660,017,242.36/106,611.39
  6. Step 6: Final answer
    x = 81,229.76

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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.