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Finding the Fourth Proportional to 118,922.27, 178,409.64 and 34,689.03

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Solution

The fourth proportional to 118,922.27, 178,409.64 and 34,689.03 is: 52,041.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,922.27 : 178,409.64 = 34,689.03 : x
  2. Step 2: Convert to fraction form
    118,922.27/178,409.64 = 34,689.03/x
  3. Step 3: Cross multiply
    118,922.27x = 178,409.64 × 34,689.03
  4. Step 4: Simplify right side
    118,922.27x = 6,188,856,815.30
  5. Step 5: Solve for x
    x = 6,188,856,815.30/118,922.27
  6. Step 6: Final answer
    x = 52,041.19

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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.