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Finding the Fourth Proportional to 45,908.50, 68,507.84 and 40,938.52

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Solution

The fourth proportional to 45,908.50, 68,507.84 and 40,938.52 is: 61,091.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,908.50 : 68,507.84 = 40,938.52 : x
  2. Step 2: Convert to fraction form
    45,908.50/68,507.84 = 40,938.52/x
  3. Step 3: Cross multiply
    45,908.50x = 68,507.84 × 40,938.52
  4. Step 4: Simplify right side
    45,908.50x = 2,804,609,578.00
  5. Step 5: Solve for x
    x = 2,804,609,578.00/45,908.50
  6. Step 6: Final answer
    x = 61,091.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.