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Finding the Fourth Proportional to 109,707.90, 164,561.85 and 101,067.90

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Solution

The fourth proportional to 109,707.90, 164,561.85 and 101,067.90 is: 151,601.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,707.90 : 164,561.85 = 101,067.90 : x
  2. Step 2: Convert to fraction form
    109,707.90/164,561.85 = 101,067.90/x
  3. Step 3: Cross multiply
    109,707.90x = 164,561.85 × 101,067.90
  4. Step 4: Simplify right side
    109,707.90x = 16,631,920,599.62
  5. Step 5: Solve for x
    x = 16,631,920,599.62/109,707.90
  6. Step 6: Final answer
    x = 151,601.85

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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.