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Finding the Fourth Proportional to 73,161.54, 100,963.41 and 39,627.54

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Solution

The fourth proportional to 73,161.54, 100,963.41 and 39,627.54 is: 54,686.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,161.54 : 100,963.41 = 39,627.54 : x
  2. Step 2: Convert to fraction form
    73,161.54/100,963.41 = 39,627.54/x
  3. Step 3: Cross multiply
    73,161.54x = 100,963.41 × 39,627.54
  4. Step 4: Simplify right side
    73,161.54x = 4,000,931,568.31
  5. Step 5: Solve for x
    x = 4,000,931,568.31/73,161.54
  6. Step 6: Final answer
    x = 54,686.27

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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.