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Finding the Fourth Proportional to 170,886.11, 256,106.21 and 123,660.27

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Solution

The fourth proportional to 170,886.11, 256,106.21 and 123,660.27 is: 185,329.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,886.11 : 256,106.21 = 123,660.27 : x
  2. Step 2: Convert to fraction form
    170,886.11/256,106.21 = 123,660.27/x
  3. Step 3: Cross multiply
    170,886.11x = 256,106.21 × 123,660.27
  4. Step 4: Simplify right side
    170,886.11x = 31,670,162,458.98
  5. Step 5: Solve for x
    x = 31,670,162,458.98/170,886.11
  6. Step 6: Final answer
    x = 185,329.07

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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.