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Finding the Fourth Proportional to 118,404.44, 163,398.12 and 68,103.44

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Solution

The fourth proportional to 118,404.44, 163,398.12 and 68,103.44 is: 93,982.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,404.44 : 163,398.12 = 68,103.44 : x
  2. Step 2: Convert to fraction form
    118,404.44/163,398.12 = 68,103.44/x
  3. Step 3: Cross multiply
    118,404.44x = 163,398.12 × 68,103.44
  4. Step 4: Simplify right side
    118,404.44x = 11,127,974,061.53
  5. Step 5: Solve for x
    x = 11,127,974,061.53/118,404.44
  6. Step 6: Final answer
    x = 93,982.74

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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.