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Finding the Fourth Proportional to 73,515.54, 101,451.51 and 39,981.54

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Solution

The fourth proportional to 73,515.54, 101,451.51 and 39,981.54 is: 55,174.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,515.54 : 101,451.51 = 39,981.54 : x
  2. Step 2: Convert to fraction form
    73,515.54/101,451.51 = 39,981.54/x
  3. Step 3: Cross multiply
    73,515.54x = 101,451.51 × 39,981.54
  4. Step 4: Simplify right side
    73,515.54x = 4,056,187,605.13
  5. Step 5: Solve for x
    x = 4,056,187,605.13/73,515.54
  6. Step 6: Final answer
    x = 55,174.56

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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.