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Finding the Fourth Proportional to 185,406.29, 255,862.65 and 108,928.57

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Solution

The fourth proportional to 185,406.29, 255,862.65 and 108,928.57 is: 150,322.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,406.29 : 255,862.65 = 108,928.57 : x
  2. Step 2: Convert to fraction form
    185,406.29/255,862.65 = 108,928.57/x
  3. Step 3: Cross multiply
    185,406.29x = 255,862.65 × 108,928.57
  4. Step 4: Simplify right side
    185,406.29x = 27,870,752,580.91
  5. Step 5: Solve for x
    x = 27,870,752,580.91/185,406.29
  6. Step 6: Final answer
    x = 150,322.58

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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.