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Finding the Fourth Proportional to 75,085.50, 103,621.24 and 41,551.50

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Solution

The fourth proportional to 75,085.50, 103,621.24 and 41,551.50 is: 57,342.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,085.50 : 103,621.24 = 41,551.50 : x
  2. Step 2: Convert to fraction form
    75,085.50/103,621.24 = 41,551.50/x
  3. Step 3: Cross multiply
    75,085.50x = 103,621.24 × 41,551.50
  4. Step 4: Simplify right side
    75,085.50x = 4,305,617,953.86
  5. Step 5: Solve for x
    x = 4,305,617,953.86/75,085.50
  6. Step 6: Final answer
    x = 57,342.87

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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.