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Finding the Fourth Proportional to 71,904.99, 99,229.21 and 41,708.19

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Solution

The fourth proportional to 71,904.99, 99,229.21 and 41,708.19 is: 57,557.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,904.99 : 99,229.21 = 41,708.19 : x
  2. Step 2: Convert to fraction form
    71,904.99/99,229.21 = 41,708.19/x
  3. Step 3: Cross multiply
    71,904.99x = 99,229.21 × 41,708.19
  4. Step 4: Simplify right side
    71,904.99x = 4,138,670,744.23
  5. Step 5: Solve for x
    x = 4,138,670,744.23/71,904.99
  6. Step 6: Final answer
    x = 57,557.49

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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.