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Finding the Fourth Proportional to 45,839.16, 68,656.02 and 39,839.16

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Solution

The fourth proportional to 45,839.16, 68,656.02 and 39,839.16 is: 59,669.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,839.16 : 68,656.02 = 39,839.16 : x
  2. Step 2: Convert to fraction form
    45,839.16/68,656.02 = 39,839.16/x
  3. Step 3: Cross multiply
    45,839.16x = 68,656.02 × 39,839.16
  4. Step 4: Simplify right side
    45,839.16x = 2,735,198,165.74
  5. Step 5: Solve for x
    x = 2,735,198,165.74/45,839.16
  6. Step 6: Final answer
    x = 59,669.47

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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.