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Finding the Fourth Proportional to 118,934.96, 178,052.49 and 79,394.00

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Solution

The fourth proportional to 118,934.96, 178,052.49 and 79,394.00 is: 118,857.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,934.96 : 178,052.49 = 79,394.00 : x
  2. Step 2: Convert to fraction form
    118,934.96/178,052.49 = 79,394.00/x
  3. Step 3: Cross multiply
    118,934.96x = 178,052.49 × 79,394.00
  4. Step 4: Simplify right side
    118,934.96x = 14,136,298,500.80
  5. Step 5: Solve for x
    x = 14,136,298,500.80/118,934.96
  6. Step 6: Final answer
    x = 118,857.39

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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.