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Finding the Fourth Proportional to 124,503.47, 171,814.43 and 67,914.44

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Solution

The fourth proportional to 124,503.47, 171,814.43 and 67,914.44 is: 93,721.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,503.47 : 171,814.43 = 67,914.44 : x
  2. Step 2: Convert to fraction form
    124,503.47/171,814.43 = 67,914.44/x
  3. Step 3: Cross multiply
    124,503.47x = 171,814.43 × 67,914.44
  4. Step 4: Simplify right side
    124,503.47x = 11,668,680,797.37
  5. Step 5: Solve for x
    x = 11,668,680,797.37/124,503.47
  6. Step 6: Final answer
    x = 93,721.73

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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.