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Finding the Fourth Proportional to 132,859.61, 199,255.38 and 39,343.49

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Solution

The fourth proportional to 132,859.61, 199,255.38 and 39,343.49 is: 59,005.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,859.61 : 199,255.38 = 39,343.49 : x
  2. Step 2: Convert to fraction form
    132,859.61/199,255.38 = 39,343.49/x
  3. Step 3: Cross multiply
    132,859.61x = 199,255.38 × 39,343.49
  4. Step 4: Simplify right side
    132,859.61x = 7,839,401,054.20
  5. Step 5: Solve for x
    x = 7,839,401,054.20/132,859.61
  6. Step 6: Final answer
    x = 59,005.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.