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Finding the Fourth Proportional to 124,047.72, 171,187.02 and 73,737

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Solution

The fourth proportional to 124,047.72, 171,187.02 and 73,737 is: 101,757.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,047.72 : 171,187.02 = 73,737 : x
  2. Step 2: Convert to fraction form
    124,047.72/171,187.02 = 73,737/x
  3. Step 3: Cross multiply
    124,047.72x = 171,187.02 × 73,737
  4. Step 4: Simplify right side
    124,047.72x = 12,622,817,293.74
  5. Step 5: Solve for x
    x = 12,622,817,293.74/124,047.72
  6. Step 6: Final answer
    x = 101,757.75

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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.