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Finding the Fourth Proportional to 109,379.25, 150,943.47 and 59,078.25

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Solution

The fourth proportional to 109,379.25, 150,943.47 and 59,078.25 is: 81,528.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,379.25 : 150,943.47 = 59,078.25 : x
  2. Step 2: Convert to fraction form
    109,379.25/150,943.47 = 59,078.25/x
  3. Step 3: Cross multiply
    109,379.25x = 150,943.47 × 59,078.25
  4. Step 4: Simplify right side
    109,379.25x = 8,917,475,834.98
  5. Step 5: Solve for x
    x = 8,917,475,834.98/109,379.25
  6. Step 6: Final answer
    x = 81,528.04

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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.