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Finding the Fourth Proportional to 124,042.68, 171,186.38 and 73,089.38

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Solution

The fourth proportional to 124,042.68, 171,186.38 and 73,089.38 is: 100,867.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,042.68 : 171,186.38 = 73,089.38 : x
  2. Step 2: Convert to fraction form
    124,042.68/171,186.38 = 73,089.38/x
  3. Step 3: Cross multiply
    124,042.68x = 171,186.38 × 73,089.38
  4. Step 4: Simplify right side
    124,042.68x = 12,511,905,157.27
  5. Step 5: Solve for x
    x = 12,511,905,157.27/124,042.68
  6. Step 6: Final answer
    x = 100,867.74

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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.