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Finding the Fourth Proportional to 124,596.16, 186,669.60 and 68,375.68

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Solution

The fourth proportional to 124,596.16, 186,669.60 and 68,375.68 is: 102,440.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,596.16 : 186,669.60 = 68,375.68 : x
  2. Step 2: Convert to fraction form
    124,596.16/186,669.60 = 68,375.68/x
  3. Step 3: Cross multiply
    124,596.16x = 186,669.60 × 68,375.68
  4. Step 4: Simplify right side
    124,596.16x = 12,763,660,835.33
  5. Step 5: Solve for x
    x = 12,763,660,835.33/124,596.16
  6. Step 6: Final answer
    x = 102,440.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.