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Finding the Fourth Proportional to 124,064.12, 171,253.02 and 73,763

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Solution

The fourth proportional to 124,064.12, 171,253.02 and 73,763 is: 101,819.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,064.12 : 171,253.02 = 73,763 : x
  2. Step 2: Convert to fraction form
    124,064.12/171,253.02 = 73,763/x
  3. Step 3: Cross multiply
    124,064.12x = 171,253.02 × 73,763
  4. Step 4: Simplify right side
    124,064.12x = 12,632,136,514.26
  5. Step 5: Solve for x
    x = 12,632,136,514.26/124,064.12
  6. Step 6: Final answer
    x = 101,819.42

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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.