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Finding the Fourth Proportional to 75,122.85, 112,520.52 and 37,617.51

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Solution

The fourth proportional to 75,122.85, 112,520.52 and 37,617.51 is: 56,344.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,122.85 : 112,520.52 = 37,617.51 : x
  2. Step 2: Convert to fraction form
    75,122.85/112,520.52 = 37,617.51/x
  3. Step 3: Cross multiply
    75,122.85x = 112,520.52 × 37,617.51
  4. Step 4: Simplify right side
    75,122.85x = 4,232,741,786.31
  5. Step 5: Solve for x
    x = 4,232,741,786.31/75,122.85
  6. Step 6: Final answer
    x = 56,344.27

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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.