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Finding the Fourth Proportional to 73,160.91, 100,963.94 and 40,894.56

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Solution

The fourth proportional to 73,160.91, 100,963.94 and 40,894.56 is: 56,435.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,160.91 : 100,963.94 = 40,894.56 : x
  2. Step 2: Convert to fraction form
    73,160.91/100,963.94 = 40,894.56/x
  3. Step 3: Cross multiply
    73,160.91x = 100,963.94 × 40,894.56
  4. Step 4: Simplify right side
    73,160.91x = 4,128,875,697.69
  5. Step 5: Solve for x
    x = 4,128,875,697.69/73,160.91
  6. Step 6: Final answer
    x = 56,435.54

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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.