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Finding the Fourth Proportional to 124,450.48, 171,742.48 and 67,862.80

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Solution

The fourth proportional to 124,450.48, 171,742.48 and 67,862.80 is: 93,651.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,450.48 : 171,742.48 = 67,862.80 : x
  2. Step 2: Convert to fraction form
    124,450.48/171,742.48 = 67,862.80/x
  3. Step 3: Cross multiply
    124,450.48x = 171,742.48 × 67,862.80
  4. Step 4: Simplify right side
    124,450.48x = 11,654,925,571.74
  5. Step 5: Solve for x
    x = 11,654,925,571.74/124,450.48
  6. Step 6: Final answer
    x = 93,651.11

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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.