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Finding the Fourth Proportional to 123,541.94, 170,487.41 and 66,953.45

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Solution

The fourth proportional to 123,541.94, 170,487.41 and 66,953.45 is: 92,395.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,541.94 : 170,487.41 = 66,953.45 : x
  2. Step 2: Convert to fraction form
    123,541.94/170,487.41 = 66,953.45/x
  3. Step 3: Cross multiply
    123,541.94x = 170,487.41 × 66,953.45
  4. Step 4: Simplify right side
    123,541.94x = 11,414,719,093.86
  5. Step 5: Solve for x
    x = 11,414,719,093.86/123,541.94
  6. Step 6: Final answer
    x = 92,395.50

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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.