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Finding the Fourth Proportional to 89,803.51, 123,926.46 and 49,516.59

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Solution

The fourth proportional to 89,803.51, 123,926.46 and 49,516.59 is: 68,331.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,803.51 : 123,926.46 = 49,516.59 : x
  2. Step 2: Convert to fraction form
    89,803.51/123,926.46 = 49,516.59/x
  3. Step 3: Cross multiply
    89,803.51x = 123,926.46 × 49,516.59
  4. Step 4: Simplify right side
    89,803.51x = 6,136,415,709.97
  5. Step 5: Solve for x
    x = 6,136,415,709.97/89,803.51
  6. Step 6: Final answer
    x = 68,331.58

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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.