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Finding the Fourth Proportional to 124,235.70, 171,439.92 and 67,647.48

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Solution

The fourth proportional to 124,235.70, 171,439.92 and 67,647.48 is: 93,350.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,235.70 : 171,439.92 = 67,647.48 : x
  2. Step 2: Convert to fraction form
    124,235.70/171,439.92 = 67,647.48/x
  3. Step 3: Cross multiply
    124,235.70x = 171,439.92 × 67,647.48
  4. Step 4: Simplify right side
    124,235.70x = 11,597,478,559.40
  5. Step 5: Solve for x
    x = 11,597,478,559.40/124,235.70
  6. Step 6: Final answer
    x = 93,350.61

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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.