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Finding the Fourth Proportional to 109,450.90, 151,042.26 and 59,149.90

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Solution

The fourth proportional to 109,450.90, 151,042.26 and 59,149.90 is: 81,626.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,450.90 : 151,042.26 = 59,149.90 : x
  2. Step 2: Convert to fraction form
    109,450.90/151,042.26 = 59,149.90/x
  3. Step 3: Cross multiply
    109,450.90x = 151,042.26 × 59,149.90
  4. Step 4: Simplify right side
    109,450.90x = 8,934,134,574.77
  5. Step 5: Solve for x
    x = 8,934,134,574.77/109,450.90
  6. Step 6: Final answer
    x = 81,626.87

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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.