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Finding the Fourth Proportional to 124,063.12, 171,251.64 and 73,762

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Solution

The fourth proportional to 124,063.12, 171,251.64 and 73,762 is: 101,818.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,063.12 : 171,251.64 = 73,762 : x
  2. Step 2: Convert to fraction form
    124,063.12/171,251.64 = 73,762/x
  3. Step 3: Cross multiply
    124,063.12x = 171,251.64 × 73,762
  4. Step 4: Simplify right side
    124,063.12x = 12,631,863,469.68
  5. Step 5: Solve for x
    x = 12,631,863,469.68/124,063.12
  6. Step 6: Final answer
    x = 101,818.04

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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.