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Finding the Fourth Proportional to 109,772.69, 164,659.03 and 30,886.92

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Solution

The fourth proportional to 109,772.69, 164,659.03 and 30,886.92 is: 46,330.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,772.69 : 164,659.03 = 30,886.92 : x
  2. Step 2: Convert to fraction form
    109,772.69/164,659.03 = 30,886.92/x
  3. Step 3: Cross multiply
    109,772.69x = 164,659.03 × 30,886.92
  4. Step 4: Simplify right side
    109,772.69x = 5,085,810,209.67
  5. Step 5: Solve for x
    x = 5,085,810,209.67/109,772.69
  6. Step 6: Final answer
    x = 46,330.38

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Double scale
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Similar ratio
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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.