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Finding the Fourth Proportional to 188,843.20, 282,681.60 and 109,722.40

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Solution

The fourth proportional to 188,843.20, 282,681.60 and 109,722.40 is: 164,244.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,843.20 : 282,681.60 = 109,722.40 : x
  2. Step 2: Convert to fraction form
    188,843.20/282,681.60 = 109,722.40/x
  3. Step 3: Cross multiply
    188,843.20x = 282,681.60 × 109,722.40
  4. Step 4: Simplify right side
    188,843.20x = 31,016,503,587.84
  5. Step 5: Solve for x
    x = 31,016,503,587.84/188,843.20
  6. Step 6: Final answer
    x = 164,244.75

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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.