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Finding the Fourth Proportional to 111,751.91, 154,001.09 and 92,659.40

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Solution

The fourth proportional to 111,751.91, 154,001.09 and 92,659.40 is: 127,690.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,751.91 : 154,001.09 = 92,659.40 : x
  2. Step 2: Convert to fraction form
    111,751.91/154,001.09 = 92,659.40/x
  3. Step 3: Cross multiply
    111,751.91x = 154,001.09 × 92,659.40
  4. Step 4: Simplify right side
    111,751.91x = 14,269,648,135.45
  5. Step 5: Solve for x
    x = 14,269,648,135.45/111,751.91
  6. Step 6: Final answer
    x = 127,690.42

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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.