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Finding the Fourth Proportional to 124,223.28, 171,428.52 and 67,635

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Solution

The fourth proportional to 124,223.28, 171,428.52 and 67,635 is: 93,336.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,223.28 : 171,428.52 = 67,635 : x
  2. Step 2: Convert to fraction form
    124,223.28/171,428.52 = 67,635/x
  3. Step 3: Cross multiply
    124,223.28x = 171,428.52 × 67,635
  4. Step 4: Simplify right side
    124,223.28x = 11,594,567,950.20
  5. Step 5: Solve for x
    x = 11,594,567,950.20/124,223.28
  6. Step 6: Final answer
    x = 93,336.51

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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.