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Finding the Fourth Proportional to 124,380, 171,524.52 and 83,635.92

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Solution

The fourth proportional to 124,380, 171,524.52 and 83,635.92 is: 115,336.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,380 : 171,524.52 = 83,635.92 : x
  2. Step 2: Convert to fraction form
    124,380/171,524.52 = 83,635.92/x
  3. Step 3: Cross multiply
    124,380x = 171,524.52 × 83,635.92
  4. Step 4: Simplify right side
    124,380x = 14,345,611,032.76
  5. Step 5: Solve for x
    x = 14,345,611,032.76/124,380
  6. Step 6: Final answer
    x = 115,336.96

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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.